ORCID Profile
0000-0001-9883-5900
Current Organisations
Shenzhen University
,
University of Zurich
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Atomic, Molecular, Nuclear, Particle and Plasma Physics | Atomic And Molecular Physics | Optical Physics Not Elsewhere Classified | Condensed Matter Physics—Other
ANZSRC Socio-Economic Objective (SEO)
Related Links
Publications
Entanglement-enhanced test proposal for local Lorentz-symmetry violation via spinor atoms
Publisher: Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften
Date: 14-11-2022
DOI: 10.22331/Q-2022-11-14-859
Abstract: Invariance under Lorentz transformations is fundamental to both the standard model and general relativity. Testing Lorentz-symmetry violation (LSV) via atomic systems attracts extensive interests in both theory and experiment. In several test proposals, the LSV violation effects are described as a local interaction and the corresponding test precision can asymptotically reach the Heisenberg limit via increasing quantum Fisher information (QFI), but the limited resolution of collective observables prevents the detection of large QFI. Here, we propose a multimode many-body quantum interferometry for testing the LSV parameter & #x03BA via an ensemble of spinor atoms. By employing an N -atom multimode GHZ state, the test precision can attain the Heisenberg limit & #x0394 & #x03BA & #x221D 1 / ( F 2 N ) with the spin length F and the atom number N . We find a realistic observable (i.e. practical measurement process) to achieve the ultimate precision and analyze the LSV test via an experimentally accessible three-mode interferometry with Bose condensed spin- 1 atoms for ex le. By selecting suitable input states and unitary recombination operation, the LSV parameter & #x03BA can be extracted via realizable population measurement. Especially, the measurement precision of the LSV parameter & #x03BA can beat the standard quantum limit and even approach the Heisenberg limit via spin mixing dynamics or driving through quantum phase transitions. Moreover, the scheme is robust against nonadiabatic effect and detection noise. Our test scheme may open up a feasible way for a drastic improvement of the LSV tests with atomic systems and provide an alternative application of multi-particle entangled states.
Seismic signature of mudflow tremor resulted from Brumadinho (Brazil) tailings dam failure
Publisher: FapUNIFESP (SciELO)
Date: 09-2020
Coherent destruction of tunneling in a lattice array under selective in-phase modulations
Publisher: American Physical Society (APS)
Date: 23-11-2011
Sentential negation in early child English
Publisher: Cambridge University Press (CUP)
Date: 17-12-2012
DOI: 10.1017/S0022226712000382
Abstract: Starting with the seminal work of Klima & Bellugi (1966) and Bellugi (1967), young English-speaking children have been observed to pass through a stage at which their negative utterances differ from those of adults. Children initially use not or no , whereas adults use negative auxiliary verbs ( don't , can't , etc.). To explain the observed mismatches between child and adult language, the present study adopts Zeijlstra's (2004, 2007, 2008a, b) Negative Concord Parameter, which ides languages according to whether they interpret negation directly in the semantics with an adverb, or license it in the syntactic component, in which case the negative marker is a head and the language is a negative concord language. Our proposal is that children first hypothesize that negation is expressed with an adverb, in keeping with the more economical parameter value. Because English is exceptional in having both an adverb and a head form of negation, children must also add a negative head (i.e. n't ) to their grammar. This takes considerable time as the positive input that triggers syntactic negation and negative concord is absent in the input for standard English, and children must find alternative evidence. The Negative Concord Parameter accounts for an intricate longitudinal pattern of development in child English, as non-adult structures are eliminated and a new range of structures are licensed by the grammar.
Unpaired topological triply degenerate point for spin-tensor-momentum-coupled ultracold atoms
Publisher: American Physical Society (APS)
Date: 05-07-2022
SPECTRAL ANALYSIS OF THE RECORDED AMBIENT VIBRATION AT A MASS MOVEMENT IN BRASILIA
Publisher: Society of Exploration Geophysicists and Environment and Engineering Geophysical Society
Date: 23-03-2017
Dynamic winding number for exploring band topology
Publisher: American Physical Society (APS)
Date: 15-04-2020
Exactly formulated Bose-Einstein condensates in optical lattices
Publisher: Elsevier BV
Date: 04-2004
Efficient and robust entanglement generation with deep reinforcement learning for quantum metrology
Publisher: IOP Publishing
Date: 08-2022
Abstract: Quantum metrology exploits quantum resources and strategies to improve measurement precision of unknown parameters. One crucial issue is how to prepare a quantum entangled state suitable for high-precision measurement beyond the standard quantum limit. Here, we propose a scheme to optimize the state preparation pulse sequence to accelerate the one-axis twisting dynamics for entanglement generation with the aid of deep reinforcement learning (DRL). We consider the pulse train as a sequence of π /2 pulses along one axis or two orthogonal axes, and the operation is determined by maximizing the quantum Fisher information using DRL. Within a limited evolution time, the ultimate precision bounds of the prepared entangled states follow the Heisenberg-limited scalings. These states can also be used as the input states for Ramsey interferometry and the final measurement precisions still follow the Heisenberg-limited scalings. While the pulse train along only one axis is more simple and efficient, the scheme using pulse sequence along two orthogonal axes show better robustness against atom number difference between simulation and experiment. Our protocol with DRL is efficient and easy to be implemented in state-of-the-art experiments.
Topological Floquet edge states in periodically curved waveguides
Publisher: American Physical Society (APS)
Date: 31-07-2018
Achieving Heisenberg-limited metrology with spin cat states via interaction-based readout
Publisher: American Physical Society (APS)
Date: 23-07-2018
Dynamic fragmentation in a quenched two-mode Bose–Einstein condensate
Publisher: Springer Science and Business Media LLC
Date: 24-12-2015
Melting of discrete vortices via quantum fluctuations
Publisher: American Physical Society (APS)
Date: 11-2006
Many-body quantum coherence and interaction blockade in Josephson-linked Bose-Einstein condensates
Publisher: IOP Publishing
Date: 03-2008
Topological invariants for interacting systems: From twisted boundary conditions to center-of-mass momentum
Publisher: American Physical Society (APS)
Date: 30-03-2023
Geomorphological Description and Erosive-Depositional Dynamics of Hillslopes on Ribeirão Contagen Fluvial Valley-DF, Brazil
Publisher: Instituto de Geociencias - UFRJ
Date: 20-08-2018
Topological Inverse Band Theory in Waveguide Quantum Electrodynamics
Publisher: American Physical Society (APS)
Date: 08-09-2023
Quantum simulation of interaction blockade in a two-site Bose–Hubbard system with solid quadrupolar crystal
Publisher: IOP Publishing
Date: 20-05-2015
Seasonal Monitoring of Hydrological Stresses Developed by Varying Degree of Rainfall Induced Pore-Pressures Using Noise Data
Publisher: Brazilian Geophysical Society
Date: 03-08-2017
DOI: 10.1190/SBGF2017-340
Nonlinearity-assisted quantum tunnelling in a matter-wave interferometer
Publisher: IOP Publishing
Date: 19-10-2007
APLICAÇÃO DO GPR PARA ANÁLISE E DIFERENCIAÇÃO ENTRE MATERIAIS ALUVIONARES E COLUVIONARES, EMBASADAS EM OBSERVAÇÕES DIRETAS, NO VALE DO RIBEIRÃO CONTAGEM - DISTRITO FEDERAL (BRASIL)
Publisher: Revista Brasileira de Geomorfologia
Date: 31-03-2019
Abstract: O presente estudo tem por objetivo fazer uso de tecnologia GPR (Ground Penetration Radar), também conhecido como Georadar, para distinguir os materiais aluvionares, coluvionares e eluvionares depositados nas encostas e planícies da fazenda Vão do Buraco, calha do Contagem, porção leste do Planalto Central, na região do Distrito Federal. Foram definidas três encostas: côncava fechada (E1), côncava aberta (E2) e convexa (E3), para a aquisição de dados dos perfis de GPR, onde já se tinham descrições prévias dos materiais depositados, apresentando elúvio no topo, colúvio na média encosta e colúvio/aluvião na planície com formação de um leque aluvial. Fez-se uso de uma antena de 400 MHz para a sondagem, resultando em radargramas com informações de refletância. Devido às diferenças de composição entre o aluvião e o coluvião, seus contatos são abruptos. O alúvio, por apresentar cascalhos em sua composição, é definido por um número maior de alvos e alta refletância. Já o colúvio é constituído por materiais de granulometria mais fina (silte e argila), apresentando baixa refletância com alvos difusos.
Linear ion trap imperfection and the compensation of excess micromotion
Publisher: IOP Publishing
Date: 06-2012
Experimental demonstration of nonlinear quantum metrology with optimal quantum state
Publisher: Elsevier BV
Date: 04-2018
Finite-superposition solutions for surface states in a type of photonic superlattice
Publisher: American Physical Society (APS)
Date: 04-06-2012
Fermi gases in one dimension: From Bethe ansatz to experiments
Publisher: American Physical Society (APS)
Date: 27-11-2013
Constructing higher-order topological states in higher dimensions
Publisher: American Physical Society (APS)
Date: 09-12-2021
Bose-Einstein condensation of particle-hole pairs in ultracold fermionic atoms trapped within optical lattices
Publisher: American Physical Society (APS)
Date: 14-09-2004
Magnetic phase transitions of insulating spin-orbit coupled Bose atoms in one-dimensional optical lattices
Publisher: American Physical Society (APS)
Date: 23-12-2019
Topological quantum tango
Publisher: Springer Science and Business Media LLC
Date: 24-07-2023
Magnetism of one-dimensional strongly repulsive spin-1 bosons with antiferromagnetic spin-exchange interaction
Publisher: American Physical Society (APS)
Date: 21-12-2009
QUANTUM METROLOGY WITH COLD ATOMS
Publisher: No publisher found
Date: 2014
Topological states in disordered arrays of dielectric nanoparticles
Publisher: American Physical Society (APS)
Date: 13-11-2020
Phase-dependent spontaneous spin polarization and bifurcation delay in coupled two-component Bose-Einstein condensates
Publisher: American Physical Society (APS)
Date: 23-03-2004
Physicochemical and Pulp tissue dissolution properties of some household bleach brands compared with a dental sodium hypochlorite solution
Publisher: Elsevier BV
Date: 03-2012
DOI: 10.1016/J.JOEN.2011.12.013
Abstract: Many clinicians use household bleach to irrigate root canals. Sodium hypochlorite solutions are also available from dental suppliers. We compared physicochemical features of these products and investigated their impact on pulp tissue dissolution. Six different brands of household bleach were bought from drugstores. These were compared with Chlor-XTRA and technical NaOCl solutions of controlled concentration and alkalinity regarding their chlorine content (wt% NaOCl), pH, alkaline capacity, osmolarity, surface tension (Wilhelmy plate method), and price. Bovine pulp tissue (n = 10 specimens per group) dissolution at 37°C by test and control solutions adjusted to 1.0% NaOCl was assessed. Reduction in tissue weight was compared between groups by one-way analysis of variance, followed by Bonferroni correction (P .05) among all solutions. Price was about 100-fold higher per liter of Chlor-XTRA compared with household bleach. Other than its price, the Chlor-XTRA solution had no unique features. In contrast to an earlier report, reduced surface tension did not result in greater soft tissue dissolution by NaOCl.
Cluster mean-field signature of entanglement entropy in bosonic superfluid-insulator transitions
Publisher: American Physical Society (APS)
Date: 30-08-2016
Dispersion-suppressed topological Thouless pumping
Publisher: American Physical Society (APS)
Date: 05-08-2019
Chaotic probability density in two periodically driven and weakly coupled Bose-Einstein condensates
Publisher: American Physical Society (APS)
Date: 06-08-2002
Photon-induced sideband transitions in a many-body Landau-Zener process
Publisher: American Physical Society (APS)
Date: 29-08-2014
Long-range transverse Ising model built with dipolar condensates in two-well arrays
Publisher: IOP Publishing
Date: 25-01-2017
Typological analysis of slidequakes emitted from landslides: experiments on an expander body pile and Sobradinho landslide (Brasilia, Brazil)
Publisher: FapUNIFESP (SciELO)
Date: 09-2019
Multiparticle Quantum Walks and Fisher Information in One-Dimensional Lattices
Publisher: American Physical Society (APS)
Date: 03-09-2021
New designed helical resonator to improve measurement accuracy of magic radio frequency
Publisher: IOP Publishing
Date: 08-2022
Abstract: Based upon the new designed helical resonator, the resonant radio frequency (RF) for trapping ions can be consecutively adjusted in a large range (about 12 MHz to 29 MHz) with high Q -factors (above 300). We analyze the helical resonator with a lumped element circuit model and find that the theoretical results fit well with the experimental data. With our resonator system, the resonant frequency near magic RF frequency (where the scalar Stark shift and the second-order Doppler shift due to excess micromotion cancel each other) can be continuously changed at kHz level. For 88 Sr + ion, compared to earlier results, the measurement accuracy of magic RF frequency can be improved by an order of magnitude upon rough calculation, and therefore the net micromotion frequency shifts can be further reduced. Also, the differential static scalar polarizability Δ α 0 of clock transition can be experimentally measured more accurately.
Effect of liquid and paste‐type lubricants on torque values during simulated rotary root canal instrumentation
Publisher: Wiley
Date: 18-03-2005
DOI: 10.1111/J.1365-2591.2005.00937.X
Abstract: To evaluate the effects of lubrication on torque generated during rotary preparation of simulated root canals in dentine using ProFile and ProTaper Nickel-Titanium instruments. Thirty-two 3 mm thick dentine discs were used for this study. Four pilot holes were drilled perpendicularly through each disc. These simulated root canals were filled with water, aqueous 15% ethylenediamine tetraacetic acid (EDTA) or a paste-type lubricant (Glyde). Empty canals served as controls. Peak torque values and apically directed forces of rotary instruments were measured using a specially designed testing platform. Full torsional loads over time were calculated by integration of continuous torque records. Data were compared using analyses of variance with the alpha-type error set at 0.05. Maximum torque values using ProFile instruments were significantly (P < 0.005) reduced by the EDTA solution, whilst no reduction was observed using Glyde. With ProTaper instruments, no lubricant effects on maximum torque values were observed (P = 0.372). Full torsional loads over time were significantly reduced for both ProFile and ProTaper preparation (P < 0.005) by the use of lubrication. The two fluids performed significantly better than paste-based Glyde. All lubricants reduced force when applied to ProTaper by mean reductions ranging from 12 to 54%, whilst Glyde lead to increased force when applied to ProFile. Under the conditions of this laboratory study, lubrication appeared to be advantageous. Aqueous solutions generally performed better than the paste-type product under investigation, which showed untoward effects when used in conjunction with a rotary instrument with a U-shaped cross-section (ProFile).
Squeezing-enhanced parameter estimation with a hybrid spin-oscillator interferometer
Publisher: American Physical Society (APS)
Date: 16-08-2022
Strong Photon Blockade Mediated by Optical Stark Shift in a Single-Atom–Cavity System
Publisher: American Physical Society (APS)
Date: 29-10-2019
Multiparameter estimation via an ensemble of spinor atoms
Publisher: American Physical Society (APS)
Date: 11-09-2018
Efficient generation of spin cat states with twist-and-turn dynamics via machine optimization
Publisher: American Physical Society (APS)
Date: 29-06-2022
Correlated topological pumping of interacting bosons assisted by Bloch oscillations
Publisher: American Physical Society (APS)
Date: 17-01-2023
Superfluidity and pairing phenomena in ultracold atomic Fermi gases in one-dimensional optical lattices. I. Balanced case
Publisher: American Physical Society (APS)
Date: 11-05-2020
Quantum metrology with spin cat states under dissipation
Publisher: Springer Science and Business Media LLC
Date: 09-12-2015
DOI: 10.1038/SREP17894
Abstract: Quantum metrology aims to yield higher measurement precisions via quantum techniques such as entanglement. It is of great importance for both fundamental sciences and practical technologies, from testing equivalence principle to designing high-precision atomic clocks. However, due to environment effects, highly entangled states become fragile and the achieved precisions may even be worse than the standard quantum limit (SQL). Here we present a high-precision measurement scheme via spin cat states (a kind of non-Gaussian entangled states in superposition of two quasi-orthogonal spin coherent states) under dissipation. In comparison to maximally entangled states, spin cat states with modest entanglement are more robust against losses and their achievable precisions may still beat the SQL. Even if the detector is imperfect, the achieved precisions of the parity measurement are higher than the ones of the population measurement. Our scheme provides a realizable way to achieve high-precision measurements via dissipative quantum systems of Bose atoms.
Universal local pair correlations of Lieb-Liniger bosons at quantum criticality
Publisher: American Physical Society (APS)
Date: 29-04-2013
Superfluidity and pairing phenomena in ultracold atomic Fermi gases in one-dimensional optical lattices. II. Effects of population imbalance
Publisher: American Physical Society (APS)
Date: 11-05-2020
Microtremor Response of a Mass Movement in Federal District of Brazil
Publisher: Instituto de Geociencias - UFRJ
Date: 30-11-2017
International Endodontic Journal: Editorial
Publisher: Wiley
Date: 2008
Floquet modulation of \hbox{$\mathcal{PT}$}𝒫𝒯 symmetry in an atomic Bose-Josephson junction
Publisher: Springer Science and Business Media LLC
Date: 07-2016
Symmetry-protected topological phase for spin-tensor-momentum-coupled ultracold atoms
Publisher: American Physical Society (APS)
Date: 02-07-2020
Monitoring of Sobradinho landslide (Brasília, Brazil) and a prototype vertical slope by time-lapse interferometry
Publisher: FapUNIFESP (SciELO)
Date: 2019
Witnessing topological Weyl semimetal phase in a minimal circuit-QED lattice
Publisher: IOP Publishing
Date: 23-11-2016
Multi-ion Mach-Zehnder interferometer with artificial nonlinear interactions
Publisher: IOP Publishing
Date: 03-2014
Machine optimized quantum metrology of concurrent entanglement generation and sensing
Publisher: IOP Publishing
Date: 03-2022
Abstract: Entanglement is one of the key ingredients for enhancing the measurement precision of quantum sensors. Generally, there is a trade-off between state preparation and sensing within a limited coherence time. To fully exploit temporal resources, concurrent entanglement generation and sensing with designed sequence of rotations are proposed. Based on twist-and-turn dynamics, modulated rotations along only one axis may be sufficient to drive the state to the optimal one for tiny estimated parameter. However, when the estimated parameter is not tiny, it may impact the evolved state and hence degrade the final measurement precision. Here, we introduce another modulated rotations along different axis and find out the optimal control sequences by means of machine optimization. The optimal measurement precision bounds become independent on the estimated parameter, which improves the dynamic range of the machine designed sensors. Particularly, by optimizing the interaction strength for different particle number and the time-modulated rotations along two different axes via machine optimization, the Heisenberg-limited precision scaling can be attained. Our work points out a way for designing optimized quantum-enhanced metrology protocols, which is promising for developing practical quantum sensors.
Compact gravimeter with an ensemble of ultracold atoms in spin-dependent optical lattices
Publisher: American Physical Society (APS)
Date: 19-11-2018
Nonlinear switching and solitons in PT‐symmetric photonic systems
Publisher: Wiley
Date: 16-02-2016
Topological pumping assisted by Bloch oscillations
Publisher: American Physical Society (APS)
Date: 27-07-2020
Nonlinear dissipative dynamics of a two-component atomic condensate coupling with a continuum
Publisher: IOP Publishing
Date: 02-2014
Enhanced quantum reflection of matter-wave solitons
Publisher: IOP Publishing
Date: 02-2006
Multiparticle Wannier states and Thouless pumping of interacting bosons
Publisher: American Physical Society (APS)
Date: 30-06-2017
Benefits of the Successive GPM Based Satellite Precipitation Estimates IMERG‒V03, ‒V04, ‒V05 and GSMaP‒V06, ‒V07 Over Diverse Geomorphic and Meteorological Regions of Pakistan
Publisher: MDPI AG
Date: 30-08-2018
DOI: 10.3390/RS10091373
Abstract: Launched in 2014, the Global Precipitation Measurement (GPM) mission aimed at ensuring the continuity with the Tropical Rainfall Measuring Mission (TRMM) launched in 1997 that has provided unprecedented accuracy in Satellite Precipitation Estimates (SPEs) on the near-global scale. Since then, various SPE versions have been successively made available from the GPM mission. The present study assesses the potential benefits of the successive GPM based SPEs product versions that include the Integrated Multi–Satellite Retrievals for GPM (IMERG) version 3 to 5 (–v03, –v04, –v05) and the Global Satellite Mapping of Precipitation (GSMaP) version 6 to 7 (–v06, –v07). Additionally, the most effective TRMM based SPEs products are also considered to provide a first insight into the GPM effectiveness in ensuring TRMM continuity. The analysis is conducted over different geomorphic and meteorological regions of Pakistan while using 88 precipitations gauges as the reference. Results show a clear enhancement in precipitation estimates that were derived from the very last IMERG–v05 in comparison to its two previous versions IMERG–v03 and –v04. Interestingly, based on the considered statistical metrics, IMERG–v03 provides more consistent precipitation estimate than IMERG–v04, which should be considered as a transition IMERG version. As expected, GSMaP–v07 precipitation estimates are more accurate than the previous GSMaP–v06. However, the enhancement from the old to the new version is very low. More generally, the transition from TRMM to GPM is successful with an overall better performance of GPM based SPEs than TRMM ones. Finally, all of the considered SPEs have presented a strong spatial variability in terms of accuracy with none of them outperforming the others, for all of the gauges locations over the considered regions.
Asymmetric sequential Landau-Zener dynamics of Bose-condensed atoms in a cavity
Publisher: American Physical Society (APS)
Date: 15-08-2016
Topological invariant and cotranslational symmetry in strongly interacting multi-magnon systems
Publisher: IOP Publishing
Date: 04-01-2018
Propagation and breathing of matter-wave-packet trains
Publisher: American Physical Society (APS)
Date: 24-11-2004
Chaotic and frequency-locked atomic population oscillations between two coupled Bose-Einstein condensates
Publisher: American Physical Society (APS)
Date: 02-10-2001
Adiabatic Mach-Zehnder interferometry on a quantized Bose-Josephson junction
Publisher: American Physical Society (APS)
Date: 10-10-2006
Hybrid atom-molecule quantum walks in a one-dimensional optical lattice
Publisher: American Physical Society (APS)
Date: 29-10-2018
Inelastic Scattering of Photon Pairs in Qubit Arrays with Subradiant States
Publisher: American Physical Society (APS)
Date: 19-12-2019
The stability of multitrophic communities under habitat loss
Publisher: Springer Science and Business Media LLC
Date: 24-05-2019
DOI: 10.1038/S41467-019-10370-2
Abstract: Habitat loss (HL) affects species and their interactions, ultimately altering community dynamics. Yet, a challenge for community ecology is to understand how communities with multiple interaction types—hybrid communities—respond to HL prior to species extinctions. To this end, we develop a model to investigate the response of hybrid terrestrial communities to two types of HL: random and contiguous. Our model reveals changes in stability—temporal variability in population abundances—that are dependent on the spatial configuration of HL. Our findings highlight that habitat area determines the variability of populations via changes in the distribution of species interaction strengths. The ergent responses of communities to random and contiguous HL result from different constraints imposed on in iduals’ mobility, impacting ersity and network structure in the random case, and destabilising communities by increasing interaction strength in the contiguous case. Analysis of intermediate HL suggests a gradual transition between the two extreme cases.
Observation of dynamical phase transitions in a topological nanomechanical system
Publisher: American Physical Society (APS)
Date: 25-07-2019
Simultaneous Measurement of dc and ac Magnetic Fields at the Heisenberg Limit
Publisher: American Physical Society (APS)
Date: 20-04-2020
Efficient Bayesian phase estimation via entropy-based sampling
Publisher: IOP Publishing
Date: 14-06-2022
Abstract: Bayesian estimation approaches, which are capable of combining the information of experimental data from different likelihood functions to achieve high precisions, have been widely used in phase estimation via introducing a controllable auxiliary phase. Here, we present a Bayesian phase estimation (BPE) algorithm with an ingenious update rule of the auxiliary phase designed via entropy-based s ling. Unlike other adaptive BPE algorithms, the auxiliary phase in our algorithm is determined only once in a pre-estimation step. With simple statistical analysis on a small batch of data, an iteration rule for the auxiliary phase is pre-established and used in all afterward updates, instead of complex calculations in every update trails. During this pre-estimation process the most informative data can be selected, which guides one to perform the BPE with much less measurement times. As the measurement times for the same amount of Bayesian updates is significantly reduced, our algorithm via entropy-based s ling can work as efficient as other adaptive BPE algorithms and shares the advantages (such as wide dynamic range and perfect noise robustness) of non-adaptive BPE algorithms. Our algorithm is of promising applications in various practical quantum sensors such as atomic clocks and quantum magnetometers.
Adiabatic Mach-Zehnder interferometer via an array of trapped ions
Publisher: American Physical Society (APS)
Date: 09-04-2012
Bulk vortices and half-vortex surface modes in parity-time-symmetric media
Publisher: American Physical Society (APS)
Date: 09-05-2014
Photon-Mediated Localization in Two-Level Qubit Arrays
Publisher: American Physical Society (APS)
Date: 05-03-2020
The 1D interacting Bose gas in a hard wall box
Publisher: IOP Publishing
Date: 23-08-2005
Statistics-dependent quantum co-walking of two particles in one-dimensional lattices with nearest-neighbor interactions
Publisher: American Physical Society (APS)
Date: 12-2014
Band-gap structure and chiral discrete solitons in optical lattices with artificial gauge fields
Publisher: Elsevier BV
Date: 2018
Universality and Anomalous Mean-Field Breakdown of Symmetry-Breaking Transitions in a Coupled Two-Component Bose-Einstein Condensate
Publisher: American Physical Society (APS)
Date: 18-02-2009
Heisenberg-Limited Frequency Estimation via Driving Through Quantum Phase Transitions
Publisher: American Physical Society (APS)
Date: 23-12-2021
Mobility edge of Stark many-body localization
Publisher: American Physical Society (APS)
Date: 22-02-2021
Comparative assessment of hardening of demineralized dentin under lining materials using an ultramicroindentation system
Publisher: Wiley
Date: 04-04-2007
DOI: 10.1002/JBM.B.30784
Universal dynamics of zero-momentum to plane-wave transition in spin-orbit coupled Bose-Einstein condensates
Publisher: IOP Publishing
Date: 15-05-2018
Universality of miscible–immiscible phase separation dynamics in two-component Bose–Einstein condensates
Publisher: IOP Publishing
Date: 28-02-2019
Adiabatic Rosen-Zener interferometry with ultracold atoms
Publisher: American Physical Society (APS)
Date: 29-07-2009
Temporal analog of Fabry-Pérot resonator via coherent population trapping
Publisher: Springer Science and Business Media LLC
Date: 30-09-2021
DOI: 10.1038/S41534-021-00479-Y
Abstract: Ramsey spectroscopy via coherent population trapping (CPT) is essential in precision measurements. The conventional CPT-Ramsey fringes contain numbers of almost identical oscillations and so that it is difficult to identify the central fringe. Here we experimentally demonstrate a temporal analog of Fabry–Pérot resonator via double-Λ CPT of laser-cooled 87 Rb atoms. By inserting a periodic CPT pulse train between the two CPT-Ramsey pulses, due to the constructive interference of spin coherence, the transmission spectrum appears as a comb of equidistant peaks in frequency domain and thus the central Ramsey fringe can be easily identified. From the five-level Bloch equations for our double-Λ system, we find that the multi-pulse CPT interference can be regarded as a temporal analog of Fabry–Pérot resonator. Because of the small litude difference between the two Landé g factors, each peak splits into two when the external magnetic field is not too weak. This splitting is exactly linear with the magnetic field strength and thus can be used for measuring a magnetic field without involving magneto-sensitive transitions.
Topological magnon bound states in periodically modulated Heisenberg XXZ chains
Publisher: American Physical Society (APS)
Date: 15-11-2017
Clock frequency estimation under spontaneous emission
Publisher: Springer Science and Business Media LLC
Date: 27-01-2018
Factors affecting the outcome of orthograde root canal therapy in a general dentistry hospital practice
Publisher: Elsevier BV
Date: 2005
DOI: 10.1016/J.TRIPLEO.2004.06.065
Abstract: The goal of this study was to weigh the impact of patient-related, tooth-related, and treatment-related factors on therapy outcome in a series of consecutive patients. Eighty-four patients were included. Of these, 66 (79%) were available for recall after > or = 30 months (mean = 46 months). Root canal treatments were performed using a standard protocol. At recall, teeth were scored by means of the periapical index (PAI), which was the dependent variable (dichotomized to sound/ unsound). Explanatory variables were patient age, integrity of the nonspecific immune system, smoking status, dichotomized PAI score before treatment, initial treatment versus retreatment, prior exposition of the root canal to saliva, stainless-steel hand versus NiTi rotary instrumentation, and quality of root filling. Unit of observation was the patient-in idual. Data were analyzed using univariate tests and backward stepwise logistic regression analysis. After 5 steps with elimination of the least significant independent variable, status of the immune system (P = .05), initial PAI (P = .04), and root filling quality (P = .01) were found to be the indispensable predictors for treatment outcome. Using these 3 explanatory variables, the logistic regression model had a predictive value of 87%, compared to 91% with all 8 variables. Success rate at recall (PAI < or = 2 without symptoms) was 88% (95% CI = 78, 94). The integrity of a patient's nonspecific immune system, which has been neglected in earlier investigations, is a significant predictor for endodontic treatment outcome, and should receive more attention in future studies.
Exact Floquet states of a driven condensate and their stabilities
Publisher: IOP Publishing
Date: 22-04-2008
Heisenberg-limited Sagnac interferometer with multiparticle states
Publisher: American Physical Society (APS)
Date: 10-02-2017
Wilson Ratio of Fermi Gases in One Dimension
Publisher: American Physical Society (APS)
Date: 23-09-2013
Analytical energy spectrum for hybrid mechanical systems
Publisher: IOP Publishing
Date: 03-01-2014
Nonlinear quantum interferometry with Bose condensed atoms
Publisher: Springer Science and Business Media LLC
Date: 22-01-2012
Franck-Condon physics in a single trapped ion
Publisher: IOP Publishing
Date: 20-05-2011
Kibble-Zurek dynamics in an array of coupled binary Bose condensates
Publisher: IOP Publishing
Date: 03-2016
Cluster Gutzwiller study of the Bose-Hubbard ladder: Ground-state phase diagram and many-body Landau-Zener dynamics
Publisher: American Physical Society (APS)
Date: 13-08-2015
Dynamics of a quantum phase transition in the Aubry-André-Harper model with
p
Publisher: American Physical Society (APS)
Date: 10-03-2021
Impact of Lubricant Parameters on Rotary Instrument Torque and Force
Publisher: Elsevier BV
Date: 03-2007
DOI: 10.1016/J.JOEN.2006.11.007
Abstract: In the current study, the impact of lubricant parameters on simulated root canal instrumentation was investigated. Using size 30 ProFile .06 instruments in milled artificial root canals in human dentin, the effects of sodium hypochlorite (1% NaOCl) and a chelator (18% etidronic acid) in aqueous irrigants on maximum torque, full torsional load, and maximum force values were gauged using a torque testing platform. Furthermore, the impact of the time a chelating lubricant was exposed to dentin as well as its galenic form (aqueous vs. gel-type) on the above outcome variables was evaluated. Aqueous lubricants significantly (p < 0.05, ANOVA, Newman-Keuls) reduced all outcome variables compared to dry conditions. The incorporation of a chelator further reduced these values (p < 0.05), whereas hypochlorite behaved similar to water. The chelator effect was immediate and did not increase with time. An aqueous lubricant was more beneficial than a gel-type counterpart.
Pseudo-Parity-Time Symmetry in Optical Systems
Publisher: American Physical Society (APS)
Date: 14-06-2013
Universal non-equilibrium dynamics in Bose condensed atomic gases undergoing spontaneous symmetry breaking
Publisher: Science China Press., Co. Ltd.
Date: 15-09-2022
DOI: 10.1360/TB-2021-0788
Phase transitions and pairing signature in strongly attractive Fermi atomic gases
Publisher: American Physical Society (APS)
Date: 16-08-2007
Detection of Cover Collapse Doline and Other Epikarst Features by Multiple Geophysical Techniques, Case Study of Tarimba Cave, Brazil
Publisher: MDPI AG
Date: 12-10-2020
DOI: 10.3390/W12102835
Abstract: Reliable characterization of the karst system is essential for risk assessment where many associated hazards (e.g., cover-collapse dolines and groundwater pollution) can affect natural and built environments, threatening public safety. The use of multiple geophysical approaches may offer an improved way to investigate such cover-collapse sinkholes and aid in geohazard risk assessments. In this paper, covered karst, which has two types of shallow caves (vadose and fluvial) located in Tarimba (Goias, Brazil), was investigated using various geophysical methods to evaluate their efficiency in the delineation of the geometry of sediments filled sinkhole. The methods used for the investigation were Electrical Resistivity Tomography (ERT), Seismic Refraction Survey (SRS), Seismic Refraction Tomography (SRT) and the Very Low Frequency Electromagnetic (VLF-EM) method. The study developed several (2D) sections of the measured physical properties, including P-wave velocity and electrical resistivity, as well as the induced current (because of local bodies). For the analysis and processing of the data obtained from these methods, the following approaches were adopted: ERT inversion using a least-square scheme, Karous-Hjelt filter for VLF-EM data and time-distance curves and Vp cross-sections for the SRS. The refraction data analysis showed three-layered stratigraphy topsoil, claystone and carbonate bedrock, respectively. The findings obtained from ERT (three-layered stratigraphy and sediment-filled doline), as well as VLF-EM (fractured or filled caves as a positive anomaly), were found to be consistent with the actual field conditions. However, the SRS and SRT methods did not show the collapsed material and reached the limited the depth because of shorter profile lengths. The study provides a reasonable basis for the development of an integrated geophysical approach for site characterization of karst systems, particularly the perched tank and collapse doline.
Many-Body Quantum Lock-In Amplifier
Publisher: American Physical Society (APS)
Date: 26-10-2021
Universal dynamics of the superradiant phase transition in the anisotropic quantum Rabi model
Publisher: American Physical Society (APS)
Date: 13-10-2021
Monitoring of Sobradinho landslide (Brasília, Brazil) and a prototype vertical slope by time-lapse interferometry
Publisher: FapUNIFESP (SciELO)
Date: 2019
Asymmetric topological pumping in nonparaxial photonics
Publisher: Springer Science and Business Media LLC
Date: 11-01-2022
DOI: 10.1038/S41467-021-27773-9
Abstract: Topological photonics was initially inspired by the quantum-optical analogy between the Schrödinger equation for an electron wavefunction and the paraxial equation for a light beam. Here, we reveal an unexpected phenomenon in topological pumping observed in arrays of nonparaxial optical waveguides where the quantum-optical analogy becomes invalid. We predict theoretically and demonstrate experimentally an asymmetric topological pumping when the injected field transfers from one side of the waveguide array to the other side whereas the reverse process is unexpectedly forbidden. Our finding could open an avenue for exploring topological photonics that enables nontrivial topological phenomena and designs in photonics driven by nonparaxiality.
QUANTUM METROLOGY WITH COLD ATOMS
Publisher: WORLD SCIENTIFIC
Date: 31-03-2014
Quantum Hall phases emerging from atom–photon interactions
Publisher: Springer Science and Business Media LLC
Date: 16-02-2021
DOI: 10.1038/S41534-021-00372-8
Abstract: We reveal the emergence of quantum Hall phases, topological edge states, spectral Landau levels, and Hofstadter butterfly spectra in the two-particle Hilbert space of an array of periodically spaced two-level atoms coupled to a waveguide (waveguide quantum electrodynamics). While the topological edge states of photons require fine-tuned spatial or temporal modulations of the parameters to generate synthetic magnetic fields and the quantum Hall effect, here we demonstrate that a synthetic magnetic field can be self-induced solely by atom–photon interactions. The fact that topological order can be self-induced in what is arguably the simplest possible quantum structure shows the richness of these waveguide quantum electrodynamics systems. We believe that our findings will advance several research disciplines including quantum optics, many-body physics, and nonlinear topological photonics, and that it will set an important reference point for the future experiments on qubit arrays and quantum simulators.
The quantum Rabi model: solution and dynamics
Publisher: IOP Publishing
Date: 10-02-2017
Universal spatiotemporal dynamics of spontaneous superfluidity breakdown in the presence of synthetic gauge fields
Publisher: American Physical Society (APS)
Date: 03-10-2016
Bloch oscillations of multimagnon excitations in a Heisenberg XXZ chain
Publisher: American Physical Society (APS)
Date: 18-06-2019
Kibble-Zurek scalings of continuous magnetic phase transitions in spin-1 spin-orbit-coupled Bose-Einstein condensates
Publisher: American Physical Society (APS)
Date: 13-06-0028
Floquet Bound States in a Driven Two-Particle Bose-Hubbard Model with an Impurity
Publisher: IOP Publishing
Date: 07-2017
Unified description of pairing, trionic and quarteting states for one-dimensional SU(4) attractive fermions
Publisher: IOP Publishing
Date: 06-2009
Non-Gaussian precision metrology via driving through quantum phase transitions
Publisher: American Physical Society (APS)
Date: 16-09-2203
Avalanche dynamics in the Bak-Sneppen evolution model observed with a standard distribution width of fitness
Publisher: IOP Publishing
Date: 21-10-2003
Role of excited states in molecular alignment-dependent ionization
Publisher: The Optical Society
Date: 21-11-2018
DOI: 10.1364/OE.26.032225
Magnetic phase transitions in one-dimensional strongly attractive three-component ultracold fermions
Publisher: American Physical Society (APS)
Date: 19-05-2008
Radiative topological biphoton states in modulated qubit arrays
Publisher: American Physical Society (APS)
Date: 04-08-2020
Quantum computation with diatomic bits in optical lattices
Publisher: American Physical Society (APS)
Date: 15-12-2005
Multiple Geophysical Techniques for Investigation and Monitoring of Sobradinho Landslide, Brazil
Publisher: MDPI AG
Date: 26-11-2019
DOI: 10.3390/SU11236672
Abstract: Geophysical methods have a varying degree of potential for detailed characterization of landslides and their dynamics. In this study, the application of four well-established seismic-based geophysical techniques, namely Ambient Noise Interferometry (ANI), Horizontal to Vertical Spectral Ratio (HVSR), Multi-Channel Analysis of Surface Waves (MASW) and Nanoseismic Monitoring (NM), were considered to examine their suitability for landslide characterization and monitoring the effect of seasonal variation on slope mass. Furthermore, other methods such as Ground Penetrating Radar (GPR) and DC Resistivity through Electrical Resistivity Tomography (ERT) were also used for comparison purpose. The advantages and limitations of these multiple techniques were exemplified by a case study conducted on Sobradinho landslide in Brazil. The study revealed that the geophysical characterization of the landslide using traditional techniques (i.e., GPR, ERT and MASW) were successful in (i) the differentiation between landslide debris and other Quaternary deposits, and (ii) the delineation of the landslide sliding surface. However, the innovative seismic based techniques, particularly ambient noise based (HVSR and ANI) and emitted seismic based (NM), were not very effective for the dynamic monitoring of landslide, which might be attributed to the short-time duration of the data acquisition c aigns. The HVSR was also unsuccessful in landslide site characterization i.e., identification of geometry and sliding surface. In particular, there was no clear evidence of the light seasonal variations, which could have been potentially detected from the physical parameters during the (short-time) ambient noise and microseismic acquisition c aigns. Nevertheless, the experienced integration of these geophysical techniques may provide a promising tool for future applications.
Interaction-induced topological bound states and Thouless pumping in a one-dimensional optical lattice
Publisher: American Physical Society (APS)
Date: 27-02-2020
Quantum metrology via chaos in a driven Bose-Josephson system
Publisher: American Physical Society (APS)
Date: 08-02-2021
Topological phase transitions and Thouless pumping of light in photonic waveguide arrays
Publisher: Wiley
Date: 20-10-2016
Dressed state dynamics of two-component Bose-Einstein Condensates in state-dependent potentials
Publisher: Springer Science and Business Media LLC
Date: 14-03-2018
DOI: 10.1038/S41598-018-22582-5
Abstract: Dressed potentials realized by coupling state-dependent bare potentials with external fields have important applications in trapping and manipulating atoms. Here, we study the dynamics of dressed states for coupled two-component Bose-Einstein condensates (BECs) in state-dependent potentials. Through both analytical and numerical methods, we find that the dressed state dynamics sensitively depend on both the inter-component coupling strength and the initial state. If the inter-component coupling is strong enough and the initial wave packet is located at the potential minimum, the dressed states can be decoupled and the Josephson oscillations and macroscopic quantum self-trapping appear. However, if the initial wave packet is located far away from the potential minimum, the wave packet will acquire a large kinetic energy and Landau-Zener transitiozs between the dressed states occur at the avoided-crossing point. Further, we give the validity ranges and conditions for the formation of adiabatic potentials, where the influences of Landau-Zener transitions can be ignored. Our results give an insight on how the inter-component coupling affects the dressed state dynamics and how to realize adiabatic potentials with BECs in state-dependent potentials.
Analytical eigenstates for the quantum Rabi model
Publisher: IOP Publishing
Date: 27-09-2013
Quasispin model for macroscopic quantum tunneling between two coupled Bose-Einstein condensates
Publisher: American Physical Society (APS)
Date: 21-11-2003
Topological quantum transport and spatial entanglement distribution via a disordered bulk channel
Publisher: American Physical Society (APS)
Date: 15-05-2020
Shear Wave Velocity Estimation by a Joint Inversion of HVSR and f-k Curves under Diffuse Field Assumption: A Case Study of Sobradinho Landslide
Publisher: Instituto de Geociencias - UFRJ
Date: 13-05-2019
Classical calculation of high-order harmonic generation of atomic and molecular gases in intense laser fields
Publisher: American Physical Society (APS)
Date: 09-2001
Advances in endodontics: Potential applications in clinical practice
Publisher: Medknow
Date: 2016
Ramsey interferometry with arbitrary coherent-population-trapping pulse sequence
Publisher: American Physical Society (APS)
Date: 23-10-2023
Bloch-Landau-Zener dynamics in single-particle Wannier-Zeeman systems
Publisher: American Physical Society (APS)
Date: 12-05-2015
Typological analysis of slidequakes emitted from landslides: experiments on an expander body pile and Sobradinho landslide (Brasilia, Brazil)
Publisher: FapUNIFESP (SciELO)
Date: 09-2019
The Potential Use of Geophysical Methods to Identify Cavities, Sinkholes and Pathways for Water Infiltration
Publisher: MDPI AG
Date: 14-08-2020
DOI: 10.3390/W12082289
Abstract: The use of geophysical characterization of karst systems can provide an economical and non-invasive alternative for extracting information about cavities, sinkholes, pathways for water infiltration as well as the degree of karstification of underlying carbonate rocks. In the present study, three geophysical techniques, namely, Ground Penetrating Radar (GPR), Electrical Resistivity Tomography (ERT) and Very Low Frequency Electromagnetic (VLFEM) methods were applied at three different locations in relation to fluvial karst, which is listed as an environmentally sensitive area in Rio Vermelho, Mambaí, Goiás, Brazil. In the data acquisition phase, the GPR, direct-current (DC) resistivity and VLFEM profiles were obtained at the three locations in the area. Data were analyzed using commonly adopted processing workflows. The GPR results showed a well-defined lithology of the site based on the litude of the signal and radar typologies. On the other hand, the inverted resistivity cross-sections showed a three-layered stratigraphy, pathways of water infiltration and the weathered structures in carbonate (Bambui group). The interpretation of VLFEM as contours of current density resulted from Fraser and Karous–Hjelt filters, indicated the presence of conductive structures (high apparent current density) that might be linked to the weathered carbonate and other conductive and resistive anomalies associated with the water-filled and dry cavities (cave), respectively. The results encourage the integrated application of geophysical techniques such as the reconnaissance for further detailed characterization of the karst areas.
Localized surface modes in parity–time-symmetric potentials
Publisher: The Optical Society
Date: 26-08-2014
DOI: 10.1364/OL.39.005154
Related Organisations
Max Planck Institute For The Physics Of Complex Systems
Location: Germany
Related Funding Activities
Discovery Projects - Grant ID: DP0770023
Start Date: 2007
End Date: 12-2009
Amount: $231,090.00
Funder: Australian Research Council
View Funded Activity