ORCID Profile
0000-0003-0692-8427
Current Organisations
Københavns Universitet
,
IT University of Copenhagen
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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)
Quantum Optics And Lasers | Quantum Physics | Optical Physics | Quantum Information, Computation and Communication | Optics And Opto-Electronic Physics | Quantum Optics | Electronic and Magnetic Properties of Condensed Matter; Superconductivity | Mathematical Physics | Optical And Photonic Systems | Theoretical Physics | Other Information, Computing And Communication Sciences | Condensed Matter Physics—Electronic And Magnetic Properties; |
ANZSRC Socio-Economic Objective (SEO)
Physical sciences | Expanding Knowledge in the Physical Sciences | Telecommunications | Information processing services | National Security | Integrated circuits and devices | Scientific instrumentation | Other | Satellite Communication Networks and Services | Network Infrastructure Equipment | Expanding Knowledge in Engineering | Communication equipment not elsewhere classified | Computer hardware and electronic equipment not elsewhere classified
Related Links
Publications
Nondeterministic gates for photonic single-rail quantum logic
Publisher: American Physical Society (APS)
Date: 16-09-2002
Conditional quantum-state engineering using ancillary squeezed-vacuum states
Publisher: American Physical Society (APS)
Date: 19-09-2006
Production of superpositions of coherent states in traveling optical fields with inefficient photon detection
Publisher: American Physical Society (APS)
Date: 07-2005
Continuous-variable quantum-state sharing via quantum disentanglement
Publisher: American Physical Society (APS)
Date: 24-03-2005
Experimental investigation of continuous-variable quantum teleportation
Publisher: American Physical Society (APS)
Date: 10-03-2003
Squeezed light in a frontal-phase-modulated signal-recycled interferometer
Publisher: American Physical Society (APS)
Date: 05-1998
Experimental demonstration of post-selection-based continuous-variable quantum key distribution in the presence of Gaussian noise
Publisher: American Physical Society (APS)
Date: 14-09-2007
RETRIEVING SQUEEZING FROM CLASSICALLY NOISY LIGHT IN 2ND-HARMONIC GENERATION
Publisher: The Optical Society
Date: 05-1995
Quantum sampling problems, BosonSampling and quantum supremacy
Publisher: Springer Science and Business Media LLC
Date: 13-04-2017
DOI: 10.1038/S41534-017-0018-2
Abstract: There is a large body of evidence for the potential of greater computational power using information carriers that are quantum mechanical over those governed by the laws of classical mechanics. But the question of the exact nature of the power contributed by quantum mechanics remains only partially answered. Furthermore, there exists doubt over the practicality of achieving a large enough quantum computation that definitively demonstrates quantum supremacy. Recently the study of computational problems that produce s les from probability distributions has added to both our understanding of the power of quantum algorithms and lowered the requirements for demonstration of fast quantum algorithms. The proposed quantum s ling problems do not require a quantum computer capable of universal operations and also permit physically realistic errors in their operation. This is an encouraging step towards an experimental demonstration of quantum algorithmic supremacy. In this paper, we will review s ling problems and the arguments that have been used to deduce when s ling problems are hard for classical computers to simulate. Two classes of quantum s ling problems that demonstrate the supremacy of quantum algorithms are BosonS ling and Instantaneous Quantum Polynomial-time S ling. We will present the details of these classes and recent experimental progress towards demonstrating quantum supremacy in BosonS ling.
Passive quantum error correction of linear optics networks through error averaging
Publisher: American Physical Society (APS)
Date: 15-02-2018
Experimental characterization of continuous-variable entanglement
Publisher: American Physical Society (APS)
Date: 12-01-2004
Quantum correlations and global coherence in distributed quantum computing
Publisher: American Physical Society (APS)
Date: 02-05-2019
Measurement-Device-Independent Approach to Entanglement Measures
Publisher: American Physical Society (APS)
Date: 13-04-2017
Coherent State Quantum Key Distribution with Continuous-Wave Laser Beams
Publisher: OSA
Date: 2010
Observation of a comb of optical squeezing over many gigahertz of bandwidth
Publisher: The Optical Society
Date: 2007
DOI: 10.1364/OE.15.005310
Abstract: We experimentally demonstrate the generation of optical squeezing at multiple longitudinal modes and transverse Hermite-Gauss modes of an optical parametric lifier. We present measurements of approximately 3 dB squeezing at baseband, 1.7 GHz, 3.4 GHz and 5.1 GHz which correspond to the first, second and third resonances of the lifier. We show that both the magnitude and the bandwidth of the squeezing at the higher longitudinal modes is greater than can be observed at baseband. The squeezing observed is the highest frequency squeezing reported to date.
Nondeterministic noiseless amplification via non-symplectic phase space transformations
Publisher: IOP Publishing
Date: 05-07-2013
Nondeterministic Noiseless Linear Amplification of Quantum Systems
Publisher: AIP
Date: 2009
DOI: 10.1063/1.3131295
Adaptive Optical Phase Estimation Using Time-Symmetric Quantum Smoothing
Publisher: American Physical Society (APS)
Date: 03-03-2010
Reversible time travel with freedom of choice
Publisher: IOP Publishing
Date: 29-10-2019
Abstract: General relativity allows for the existence of closed time-like curves, along which a material object could travel back in time and interact with its past self. This possibility raises the question whether certain initial conditions, or more generally local operations, lead to inconsistencies and should thus be forbidden. Here we consider the most general deterministic dynamics connecting classical degrees of freedom defined on a set of bounded space-time regions, requiring that it is compatible with arbitrary operations performed in the local regions. We find that any such dynamics can be realised through reversible interactions. We further find that consistency with local operations is compatible with non-trivial time travel: three parties can interact in such a way to be all both in the future and in the past of each other, while being free to perform arbitrary local operations.
Reconstruction of photon number conditioned states using phase randomized homodyne measurements
Publisher: IOP Publishing
Date: 09-05-2013
Noiseless electro-optic processing of optical signals generated with squeezed light
Publisher: The Optical Society
Date: 02-02-1998
DOI: 10.1364/OE.2.000100
Abstract: We demonstrate an elegant way of handling optical signals which are generated using squeezed states of light without losing their improved signal to noise ratio. We do this by lifing, without significant noise penalty, both signal and noise away from the quantum noise limit into the classical domain. This makes the information robust to losses. Our system achieves a signal transfer coefficient, T(s), close to unity. As a demonstration we lify a small signal carried by 35% litude squeezed light and show that unlike the fragile squeezed input, the signal lified output is robust to propagation losses. A signal transfer coefficient of T(s) = 0.75 is achieved even in the presence of large introduced (86%) downstream losses.
Fair-sampling assumption is not necessary for testing local realism
Publisher: American Physical Society (APS)
Date: 13-01-2010
On the problem of non-zero word error rates for fixed-rate error correction codes in continuous variable quantum key distribution
Publisher: IOP Publishing
Date: 02-2017
Security of Post-selection based Continuous Variable Quantum Key Distribution against Arbitrary Attacks
Publisher: OSA
Date: 2011
Conditional production of superpositions of coherent states with inefficient photon detection
Publisher: American Physical Society (APS)
Date: 17-08-2004
Loss-Tolerant Optical Qubits
Publisher: American Physical Society (APS)
Date: 30-08-2005
Entanglement-free certification of entangling gates
Publisher: American Physical Society (APS)
Date: 23-04-2014
Experimental demonstration of Gaussian protocols for one-sided device-independent quantum key distribution
Publisher: The Optical Society
Date: 10-06-2016
Measurement of Quantum Weak Values of Photon Polarization
Publisher: American Physical Society (APS)
Date: 09-06-2005
Quantum repeaters using continuous-variable teleportation
Publisher: American Physical Society (APS)
Date: 08-02-2017
Generation of a frequency comb of squeezing in an optical parametric oscillator
Publisher: American Physical Society (APS)
Date: 26-01-2006
Generation of a Cat State in an Optical Sideband
Publisher: American Physical Society (APS)
Date: 04-10-2018
A bright future for quantum communications
Publisher: Springer Science and Business Media LLC
Date: 12-2009
Ideal Quantum Teleamplification up to a Selected Energy Cutoff Using Linear Optics
Publisher: American Physical Society (APS)
Date: 18-04-2022
Experimental test of modular noise propagation theory for quantum optics
Publisher: American Physical Society (APS)
Date: 10-1996
Adaptive Optical Phase Estimation Using Time-Symmetric Quantum Smoothing
Publisher: AIP
Date: 2011
DOI: 10.1063/1.3630163
Reply to “Comment on ‘Information flow of quantum states interacting with closed timelike curves’”
Publisher: American Physical Society (APS)
Date: 23-11-2011
Measuring a photonic qubit without destroying it - Response
Publisher: American Physical Society (APS)
Date: 18-07-2005
Quantum enhancement of signal-to-noise ratio with a heralded linear amplifier
Publisher: The Optical Society
Date: 16-11-2017
Continuous improvement
Publisher: Springer Science and Business Media LLC
Date: 14-04-2013
Space-time qubits
Publisher: American Physical Society (APS)
Date: 08-08-2011
Theoretical analysis of an ideal noiseless linear amplifier for Einstein–Podolsky–Rosen entanglement distillation
Publisher: IOP Publishing
Date: 15-10-2014
Publisher’s Note: Quantum nondemolition measurements for quantum information [Phys. Rev. A73, 012113 (2006)]
Publisher: American Physical Society (APS)
Date: 02-03-2006
Measuring Photon Antibunching from Continuous Variable Sideband Squeezing
Publisher: American Physical Society (APS)
Date: 13-04-2007
Loss-tolerant operations in parity-code linear optics quantum computing
Publisher: American Physical Society (APS)
Date: 09-01-2008
Operational significance of discord consumption
Publisher: IEEE
Date: 05-2013
Teleportation of continuous-variable polarization states
Publisher: American Physical Society (APS)
Date: 06-11-2003
Quantum and classical fidelities for Gaussian states
Publisher: The Optical Society
Date: 26-01-2007
Information flow of quantum states interacting with closed timelike curves
Publisher: American Physical Society (APS)
Date: 29-12-2010
Investigation of polarisation effects in injection locked lasers
Publisher: Springer Science and Business Media LLC
Date: 05-1997
Replicating the benefits of Deutschian closed timelike curves without breaking causality
Publisher: Springer Science and Business Media LLC
Date: 24-11-2015
DOI: 10.1038/NPJQI.2015.7
Abstract: In general relativity, closed timelike curves can break causality with remarkable and unsettling consequences. At the classical level, they induce causal paradoxes disturbing enough to motivate conjectures that explicitly prevent their existence. At the quantum level such problems can be resolved through the Deutschian formalism, however this induces radical benefits—from cloning unknown quantum states to solving problems intractable to quantum computers. Instinctively, one expects these benefits to vanish if causality is respected. Here we show that in harnessing entanglement, we can efficiently solve NP-complete problems and clone arbitrary quantum states—even when all time-travelling systems are completely isolated from the past. Thus, the many defining benefits of Deutschian closed timelike curves can still be harnessed, even when causality is preserved. Our results unveil a subtle interplay between entanglement and general relativity, and significantly improve the potential of probing the radical effects that may exist at the interface between relativity and quantum theory.
Quantum key distribution without sending a quantum signal
Publisher: IOP Publishing
Date: 08-06-2015
Quantum theory of the far-off-resonance continuous-wave Raman laser: Heisenberg-Langevin approach
Publisher: American Physical Society (APS)
Date: 02-07-2003
Arbitrary multi-qubit generation
Publisher: IOP Publishing
Date: 14-10-2016
Quantum noise limits to simultaneous quadrature amplitude and phase stabilization of solid-state lasers
Publisher: American Physical Society (APS)
Date: 05-01-2007
Continuous-variable QKD with post-selection is secure
Publisher: IEEE
Date: 07-2013
Security of continuous-variable quantum cryptography with Gaussian postselection
Publisher: American Physical Society (APS)
Date: 21-02-2013
Building a quantum repeater with quantum memories and noiseless amplifiers
Publisher: IEEE
Date: 06-2013
Multiplexed communication over a high-speed quantum channel
Publisher: American Physical Society (APS)
Date: 25-03-2010
Models of reduced-noise, probabilistic linear amplifiers
Publisher: American Physical Society (APS)
Date: 05-05-2016
Entanglement dynamics and quasi-periodicity in discrete quantum walks
Publisher: Informa UK Limited
Date: 10-05-2012
Adding control to arbitrary unknown quantum operations
Publisher: Springer Science and Business Media LLC
Date: 02-08-2011
DOI: 10.1038/NCOMMS1392
Understanding and controlling laser intensity noise
Publisher: Springer Science and Business Media LLC
Date: 1999
Photon Sorting, Efficient Bell Measurements, and a Deterministic Controlled-Z Gate Using a Passive Two-Level Nonlinearity
Publisher: American Physical Society (APS)
Date: 30-04-2015
Noiseless linear amplification and loss-tolerant quantum relay using coherent-state superpositions
Publisher: American Physical Society (APS)
Date: 12-09-2023
Measurement-based noiseless linear amplification for quantum communication
Publisher: Springer Science and Business Media LLC
Date: 16-03-2014
Experimental verification of quantum discord in continuous-variable states
Publisher: IOP Publishing
Date: 03-01-2014
Stokes-operator-squeezed continuous-variable polarization states
Publisher: American Physical Society (APS)
Date: 28-01-2003
Engineered optical nonlinearity for quantum light sources
Publisher: The Optical Society
Date: 20-12-2011
DOI: 10.1364/OE.19.000055
Squeezing-enhanced adaptive optical phase estimation
Publisher: OSA
Date: 2011
Optimization and transfer of vacuum squeezing from an optical parametric oscillator
Publisher: IOP Publishing
Date: 08-1999
Experimental investigation of criteria for continuous variable entanglement
Publisher: American Physical Society (APS)
Date: 29-01-2003
Single-photon side bands
Publisher: American Physical Society (APS)
Date: 11-06-2008
Arbitrarily large continuous-variable cluster states from a single quantum nondemolition gate
Publisher: American Physical Society (APS)
Date: 23-06-2010
Schrödinger cats and their power for quantum information processing
Publisher: IOP Publishing
Date: 28-07-2004
Progress in the search for the optimum light source: Squeezing experiments with a frequency doubler
Publisher: IOP Publishing
Date: 08-1995
Calculating unknown eigenvalues with a quantum algorithm
Publisher: Springer Science and Business Media LLC
Date: 24-02-2013
Billiard-ball paradox for a quantum wave packet
Publisher: IOP Publishing
Date: 15-08-2022
Abstract: Past studies of the billiard-ball paradox, a problem involving an object that travels back in time along a closed timelike curve (CTC), typically concern themselves with entirely classical histories, whereby any trajectorial effects associated with quantum mechanics cannot manifest. Here we develop a quantum version of the paradox, wherein a (semiclassical) wave packet evolves through a region containing a wormhole time machine. This is accomplished by mapping all relevant paths on to a quantum circuit, in which the distinction of the various paths is facilitated by representing the billiard particle with a clock state. For this model, we find that Deutsch's prescription (D-CTCs) provides self-consistent solutions in the form of a mixed state composed of terms which represent every possible configuration of the particle’s evolution through the circuit. In the equivalent circuit picture (ECP), this reduces to a binomial distribution in the number of loops of time machine. The postselected teleportation prescription (P-CTCs) on the other hand predicts a pure-state solution in which the loop counts have binomial coefficient weights. We then discuss the model in the continuum limit, with a particular focus on the various methods one may employ in order to guarantee convergence in the average number of clock evolutions. Specifically, for D-CTCs, we find that it is necessary to regularise the theory’s parameters, while P-CTCs alternatively require more contrived modification.
Surpassing the no-cloning limit with a heralded hybrid linear amplifier
Publisher: IEEE
Date: 07-2017
Efficient parity-encoded optical quantum computing
Publisher: American Physical Society (APS)
Date: 22-05-2007
Measuring a photonic qubit without destroying it
Publisher: American Physical Society (APS)
Date: 12-05-2004
Minimization of information leakage in continuous-variable quantum key distribution
Publisher: American Physical Society (APS)
Date: 13-07-2021
Quantifying entanglement in two-mode Gaussian states
Publisher: American Physical Society (APS)
Date: 29-12-2017
Optimal architecture for a nondeterministic noiseless linear amplifier
Publisher: American Physical Society (APS)
Date: 27-02-2014
Photonic Boson Sampling in a Tunable Circuit
Publisher: American Association for the Advancement of Science (AAAS)
Date: 20-12-2013
Abstract: Quantum computers are unnecessary for exponentially efficient computation or simulation if the Extended Church-Turing thesis is correct. The thesis would be strongly contradicted by physical devices that efficiently perform tasks believed to be intractable for classical computers. Such a task is boson s ling: s ling the output distributions of n bosons scattered by some passive, linear unitary process. We tested the central premise of boson s ling, experimentally verifying that three-photon scattering litudes are given by the permanents of submatrices generated from a unitary describing a six-mode integrated optical circuit. We find the protocol to be robust, working even with the unavoidable effects of photon loss, non-ideal sources, and imperfect detection. Scaling this to large numbers of photons should be a much simpler task than building a universal quantum computer.
Measuring the Potential of Local Green Growth
Publisher: Organisation for Economic Co-Operation and Development (OECD)
Date: 16-01-2013
Generalized quantum scissors for noiseless linear amplification
Publisher: American Physical Society (APS)
Date: 21-12-2020
Measurement-based method for verifying quantum discord
Publisher: American Physical Society (APS)
Date: 17-01-2013
Simulation of Gaussian channels via teleportation and error correction of Gaussian states
Publisher: American Physical Society (APS)
Date: 26-11-2018
Noiseless amplification of the coherent amplitude of bright squeezed light using a standard laser amplifier
Publisher: Elsevier BV
Date: 09-1995
Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states
Publisher: Springer Science and Business Media LLC
Date: 26-06-2018
DOI: 10.1038/NCOMMS13222
Abstract: The no-cloning theorem states that an unknown quantum state cannot be cloned exactly and deterministically due to the linearity of quantum mechanics. Associated with this theorem is the quantitative no-cloning limit that sets an upper bound to the quality of the generated clones. However, this limit can be circumvented by abandoning determinism and using probabilistic methods. Here, we report an experimental demonstration of probabilistic cloning of arbitrary coherent states that clearly surpasses the no-cloning limit. Our scheme is based on a hybrid linear lifier that combines an ideal deterministic linear lifier with a heralded measurement-based noiseless lifier. We demonstrate the production of up to five clones with the fidelity of each clone clearly exceeding the corresponding no-cloning limit. Moreover, since successful cloning events are heralded, our scheme has the potential to be adopted in quantum repeater, teleportation and computing applications.
High-fidelity operation of quantum photonic circuits
Publisher: AIP Publishing
Date: 22-11-2010
DOI: 10.1063/1.3497087
Abstract: We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a photon source that produced near-identical pairs of photons. We show nonclassical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step toward large-scale operation of photonic quantum circuits.
Quantum fields on closed timelike curves
Publisher: American Physical Society (APS)
Date: 21-12-2011
Intensity noise of injection-locked lasers: Quantum theory using a linearized input-output method
Publisher: American Physical Society (APS)
Date: 11-1996
Quantum-state cloning in the presence of a closed timelike curve
Publisher: American Physical Society (APS)
Date: 26-08-2013
Adaptive phase measurements in linear optical quantum computation
Publisher: IOP Publishing
Date: 14-09-2005
SQUEEZED-LIGHT FROM 2ND-HARMONIC GENERATION - EXPERIMENT VERSUS THEORY
Publisher: The Optical Society
Date: 06-1995
DOI: 10.1364/OL.20.001316
Abstract: We report excellent quantitative agreement between theoretical predictions and experimental observation of squeezing from a singly resonant second-harmonic-generating crystal. Limitations in the noise suppression imposed by the pump laser are explicitly modeled and confirmed by our measurements.
Can the fluctuations of the quantum vacuum solve the cosmological constant problem?
Publisher: American Physical Society (APS)
Date: 11-09-2018
Squeezing more from a quantum nondemolition measurement
Publisher: American Physical Society (APS)
Date: 13-12-2001
Simplifying quantum logic using higher-dimensional Hilbert spaces
Publisher: Springer Science and Business Media LLC
Date: 07-12-2009
DOI: 10.1038/NPHYS1150
Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source
Publisher: The Optical Society
Date: 11-1997
Quantum nondemolition measurements for quantum information
Publisher: American Physical Society (APS)
Date: 31-01-2006
Sufficient Conditions for Efficient Classical Simulation of Quantum Optics
Publisher: American Physical Society (APS)
Date: 20-06-2016
Open Timelike Curves Violate Heisenberg’s Uncertainty Principle
Publisher: American Physical Society (APS)
Date: 04-02-2013
What Can Quantum Optics Say about Computational Complexity Theory?
Publisher: American Physical Society (APS)
Date: 11-02-2015
Utilizing encoding in scalable linear optics quantum computing
Publisher: IOP Publishing
Date: 23-10-2004
Quantum error correction of continuous-variable states with realistic resources
Publisher: American Physical Society (APS)
Date: 23-03-2018
Linear optical controlled-NOT gate in the coincidence basis
Publisher: American Physical Society (APS)
Date: 20-06-2002
Quantum Correlations in Nonlocal Boson Sampling
Publisher: American Physical Society (APS)
Date: 19-09-2017
Quantum-state engineering with continuous-variable postselection
Publisher: American Physical Society (APS)
Date: 06-04-2006
Fault-Tolerant Linear Optical Quantum Computing with Small-Amplitude Coherent States
Publisher: American Physical Society (APS)
Date: 25-01-2008
Operational discord measure for Gaussian states with Gaussian measurements
Publisher: IOP Publishing
Date: 29-06-2015
Time-traveling billiard-ball clocks: A quantum model
Publisher: American Physical Society (APS)
Date: 28-04-2021
Channel purification via continuous-variable quantum teleportation with Gaussian postselection
Publisher: American Physical Society (APS)
Date: 15-01-2016
Discord as a quantum resource for bi-partite communication
Publisher: AIP Publishing LLC
Date: 2014
DOI: 10.1063/1.4903110
Demonstration of an all-optical quantum controlled-NOT gate
Publisher: Springer Science and Business Media LLC
Date: 11-2003
DOI: 10.1038/NATURE02054
Active versus passive squeezing by second-harmonic generation
Publisher: The Optical Society
Date: 07-1996
Experimental simulation of closed timelike curves
Publisher: Springer Science and Business Media LLC
Date: 19-06-2014
DOI: 10.1038/NCOMMS5145
Abstract: Closed timelike curves are among the most controversial features of modern physics. As legitimate solutions to Einstein's field equations, they allow for time travel, which instinctively seems paradoxical. However, in the quantum regime these paradoxes can be resolved, leaving closed timelike curves consistent with relativity. The study of these systems therefore provides valuable insight into nonlinearities and the emergence of causal structures in quantum mechanics--essential for any formulation of a quantum theory of gravity. Here we experimentally simulate the nonlinear behaviour of a qubit interacting unitarily with an older version of itself, addressing some of the fascinating effects that arise in systems traversing a closed timelike curve. These include perfect discrimination of non-orthogonal states and, most intriguingly, the ability to distinguish nominally equivalent ways of preparing pure quantum states. Finally, we examine the dependence of these effects on the initial qubit state, the form of the unitary interaction and the influence of decoherence.
Feedback control of the intensity-noise of injection locked lasers
Publisher: Elsevier BV
Date: 1998
General relativistic effects in quantum interference of photons
Publisher: IOP Publishing
Date: 18-10-2012
Quantum Enhancement of Signal-to-noise Ratio for Arbitrary Coherent States Using Heralded Linear Amplifiers
Publisher: IEEE
Date: 07-2017
Entanglement properties of a measurement-based entanglement distillation experiment
Publisher: American Physical Society (APS)
Date: 04-2019
Intensity-noise properties of injection-locked lasers
Publisher: American Physical Society (APS)
Date: 11-1996
Configurable Unitary Transformations and Linear Logic Gates Using Quantum Memories
Publisher: American Physical Society (APS)
Date: 04-08-2014
Optimal realistic attacks in continuous-variable quantum key distribution
Publisher: American Physical Society (APS)
Date: 23-05-2019
Quantifying entanglement of formation for two-mode Gaussian states: Analytical expressions for upper and lower bounds and numerical estimation of its exact value
Publisher: American Physical Society (APS)
Date: 23-05-2019
Quantum information science with photonic chips
Publisher: IEEE
Date: 09-2010
Continuous variable polarization entanglement, experiment and analysis
Publisher: IOP Publishing
Date: 08-2003
Distributing entanglement in first-generation discrete- and continuous-variable quantum repeaters
Publisher: American Physical Society (APS)
Date: 07-11-2022
Generation of distributed entangled coherent states over a lossy environment with inefficient detectors
Publisher: American Physical Society (APS)
Date: 27-11-2013
Coherent-state quantum key distribution without random basis switching
Publisher: American Physical Society (APS)
Date: 09-02-2006
Continuous-variable entanglement distillation over a general lossy channel
Publisher: American Physical Society (APS)
Date: 09-09-2009
Optical Quantum Computation
Publisher: Elsevier
Date: 2009
Efficient Toffoli gates using qudits
Publisher: American Physical Society (APS)
Date: 16-02-2007
Entangled non-Gaussian states formed by mixing Gaussian states
Publisher: Informa UK Limited
Date: 20-07-2008
A complete quantum cryptographic system using a continuous wave laser
Publisher: SPIE
Date: 28-12-2005
DOI: 10.1117/12.651721
Experimental bosonsampling in a photonic circuit
Publisher: IEEE
Date: 07-2013
Comparison of linear optics quantum-computation control-sign gates with ancilla inefficiency and an improvement to functionality under these conditions
Publisher: American Physical Society (APS)
Date: 25-08-2003
Direct characterization of linear-optical networks
Publisher: The Optical Society
Date: 28-05-2013
DOI: 10.1364/OE.21.013450
Large-scale silicon quantum photonics implementing arbitrary two-qubit processing
Publisher: Springer Science and Business Media LLC
Date: 20-08-2018
Heralded noiseless amplification of a photon polarization qubit
Publisher: Springer Science and Business Media LLC
Date: 11-11-2013
DOI: 10.1038/NPHYS2469
Quantum process tomography of a controlled-NOT gate
Publisher: American Physical Society (APS)
Date: 20-08-2004
Noiseless independent signal and power amplification
Publisher: The Optical Society
Date: 04-1998
DOI: 10.1364/OL.23.000540
Abstract: We present a noiseless optical lifier comprising a signal- lifying feed-forward loop and a power- lifying injection-locked laser. We demonstrate that the signal lifier can attain a signal-transfer coefficient limited solely by the quantum efficiency of our in-loop photodetector and that we can independently lify the optical power while leaving the normalized intensity-noise spectral density of the input field unchanged.
Molecular Mechanism for the Control of Eukaryotic Elongation Factor 2 Kinase by pH: Role in Cancer Cell Survival
Publisher: Informa UK Limited
Date: 05-2015
DOI: 10.1128/MCB.00012-15
Quantum-gate characterization in an extended Hilbert space
Publisher: American Physical Society (APS)
Date: 06-09-2005
Coherent-state linear optical quantum computing gates using simplified diagonal superposition resource states
Publisher: American Physical Society (APS)
Date: 08-03-2005
Quantum cryptography without switching
Publisher: American Physical Society (APS)
Date: 22-10-2004
Exact boson sampling using Gaussian continuous-variable measurements
Publisher: American Physical Society (APS)
Date: 02-08-2017
Quantum information processing with Schrodinger cats
Publisher: SPIE
Date: 16-05-2003
DOI: 10.1117/12.497230
Quantum cloning of continuous-variable entangled states
Publisher: American Physical Society (APS)
Date: 13-05-2008
Optical experiments beyond the quantum limit: Squeezing, entanglement, and teleportation
Publisher: Pleiades Publishing Ltd
Date: 05-2003
DOI: 10.1134/1.1576832
Simple scheme for efficient linear optics quantum gates
Publisher: American Physical Society (APS)
Date: 12-12-2002
Quantum communication with an accelerated partner
Publisher: American Physical Society (APS)
Date: 24-01-2013
Observing the operational significance of discord consumption
Publisher: Springer Science and Business Media LLC
Date: 05-08-2012
DOI: 10.1038/NPHYS2376
Fault tolerance in parity-state linear optical quantum computing
Publisher: American Physical Society (APS)
Date: 23-08-2010
No-Switching Quantum Key Distribution Using Broadband Modulated Coherent Light
Publisher: American Physical Society (APS)
Date: 28-05-2005
Suppression of classic and quantum radiation pressure noise by electro-optic feedback
Publisher: The Optical Society
Date: 15-02-1999
DOI: 10.1364/OL.24.000259
Abstract: We present theoretical results that demonstrate a new technique that can be used to improve the sensitivity of thermal noise measurements: intracavity intensity stabilization. It is demonstrated that electro-optic feedback can be used to reduce intracavity intensity fluctuations, and the consequent radiation pressure fluctuations, by a factor of 2 below the quantum-noise limit. We show that this reduction is achievable in the presence of large classic intensity fluctuations in the incident laser beam. The benefits of this scheme are a consequence of the sub-Poissonian intensity statistics of the field inside a feedback loop and the quantum nondemolition nature of radiation pressure noise as a readout system for the intracavity intensity fluctuations.
High-fidelity Z-measurement error encoding of optical qubits
Publisher: American Physical Society (APS)
Date: 09-06-2005
Photon-number discrimination without a photon counter and its application to reconstructing non-Gaussian states
Publisher: American Physical Society (APS)
Date: 28-11-2011
Violation of Bell's Inequality Using Continuous Variable Measurements
Publisher: American Physical Society (APS)
Date: 25-01-2018
Measurement-based noiseless linear amplification for quantum communication
Publisher: SPIE
Date: 18-11-2014
DOI: 10.1117/12.2071884
Unity gain and nonunity gain quantum teleportation
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2003
Ultrafine Entanglement Witnessing
Publisher: American Physical Society (APS)
Date: 14-03-2017
Erratum: Quantum-gate characterization in an extended Hilbert space (Physics Review (2005) 72 (032306))
Publisher: American Physical Society (APS)
Date: 21-09-2005
A quantum Fredkin gate
Publisher: American Association for the Advancement of Science (AAAS)
Date: 04-03-2016
Abstract: A quantum controlled-SWAP gate is demonstrated and used to implement small-scale algorithms and produce high-fidelity GHZ states.
Experimental verification of quantum discord in continuous-variable states and operational significance of discord consumption
Publisher: OSA
Date: 2014
Experiments and theory of laser noise: Consequences for squeezing and injection locking
Publisher: SPIE
Date: 06-05-1996
DOI: 10.1117/12.239824
Experimental BosonSampling in a Tunable Optical Network
Publisher: OSA
Date: 2013
Feedback control of laser intensity noise
Publisher: American Physical Society (APS)
Date: 02-1998
Virtual noiseless amplification
Publisher: IEEE
Date: 05-2013
Coherent state topological cluster state production
Publisher: IOP Publishing
Date: 30-11-2011
Heralded noiseless linear amplification and distillation of entanglement
Publisher: Springer Science and Business Media LLC
Date: 28-03-2010
Direct characterization of any linear photonic device
Publisher: IEEE
Date: 05-2013
Discord as a consumable resource
Publisher: IEEE
Date: 06-2013
Quantum computing with continuous-variable clusters
Publisher: American Physical Society (APS)
Date: 17-06-2009
Quantum-Enhanced Optical-Phase Tracking
Publisher: American Association for the Advancement of Science (AAAS)
Date: 21-09-2012
Abstract: In optical interferometers or optical communications, information is often stored in terms of the phase of the waveform or light pulse. However, fluctuations and noise can give rise to random jitter in the phase and litude of the optical pulses, making it difficult to keep track of the phase. Yonezawa et al. (p. 1514 ) developed a technique based on quantum mechanical squeezing to determine the phase of randomly varying optical waveforms. The quantum mechanical technique enhanced the precision with which the phase could be determined and, as optical technologies continue to be miniaturized, should be helpful in applications within metrology.
Quadrature-phase noise penalties of optically and electro-optically phase-locked lasers
Publisher: Elsevier BV
Date: 06-2005
Unconditional security of Gaussian post-selected continuous variable quantum key distribution
Publisher: IEEE
Date: 05-2013
BosonSampling with realistic single-photon sources
Publisher: IEEE
Date: 05-2013
Optical squeezing in temporal, polarization and spatial domains
Publisher: SPIE
Date: 16-05-2003
DOI: 10.1117/12.497081
Distinguishability of Gaussian states in quantum cryptography using postselection
Publisher: American Physical Society (APS)
Date: 15-06-2009
Noiseless amplification of the coherent amplitude of bright squeezed light using a standard laser amplifier
Publisher: Elsevier BV
Date: 12-1995
Publisher’s Note: Measurement of Quantum Weak Values of Photon Polarization [Phys. Rev. Lett. 94, 220405 (2005)]
Publisher: American Physical Society (APS)
Date: 06-2005
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