If a spin could torque: quantum force sensing with levitated nanodiamonds. This project aims to detect the tiny twisting forces imparted by a single quantum spin on a host diamond nanocrystal levitating in vacuum. Our team will build both a hypersensitive detector of quantum rotations and the complex theoretical models for quantum spin systems coupled to the mechanical motion of nanometre-sized diamonds. The expected experimental capabilities and knowledge generated by this project will enable w ....If a spin could torque: quantum force sensing with levitated nanodiamonds. This project aims to detect the tiny twisting forces imparted by a single quantum spin on a host diamond nanocrystal levitating in vacuum. Our team will build both a hypersensitive detector of quantum rotations and the complex theoretical models for quantum spin systems coupled to the mechanical motion of nanometre-sized diamonds. The expected experimental capabilities and knowledge generated by this project will enable world-first measurements of quantum effects with unparalleled sensitivity and powerful new quantum sensing paradigms. The project should enable significant benefits, such as incisive tests of the limits of quantum theory and new Australian technology operating at the interface of the quantum and classical worlds.Read moreRead less
Quantum non-locality with mass-entangled metastable helium atoms atoms. The aim of this project is to use ultracold helium atoms to test aspects of quantum entanglement. The unique properties of metastable helium will provide significant new knowledge of this fundamental quantum property. Expected outcomes include measuring a Bell test between mass entangled atoms and testing the weak equivalence principle (the universality of free fall) using a quantum entangled state as the test masses. This s ....Quantum non-locality with mass-entangled metastable helium atoms atoms. The aim of this project is to use ultracold helium atoms to test aspects of quantum entanglement. The unique properties of metastable helium will provide significant new knowledge of this fundamental quantum property. Expected outcomes include measuring a Bell test between mass entangled atoms and testing the weak equivalence principle (the universality of free fall) using a quantum entangled state as the test masses. This should provide benefits including input into new theories that attempt to unify quantum mechanics with general relativity and will be relevant for emerging quantum technologies such as more powerful quantum computing or quantum simulation of complex systems.Read moreRead less
Quantum entanglement with atoms: from individual pairs to many-body systems. The aim of this project is to use ultracold helium atoms to test aspects of quantum entanglement. The unique properties of metastable helium will provide significant new knowledge of this fundamental quantum property. Expected outcomes include measuring a Bell test between momentum entangled atoms and showing how many-body entanglement builds up following a quantum quench. This should provide benefits including new theo ....Quantum entanglement with atoms: from individual pairs to many-body systems. The aim of this project is to use ultracold helium atoms to test aspects of quantum entanglement. The unique properties of metastable helium will provide significant new knowledge of this fundamental quantum property. Expected outcomes include measuring a Bell test between momentum entangled atoms and showing how many-body entanglement builds up following a quantum quench. This should provide benefits including new theories that attempt to unify quantum mechanics with general relativity and will be relevant for emerging quantum technologies such as more powerful quantum computing or quantum simulation of complex systems. Read moreRead less
Resonator-enhanced quantum levitation of macroscopic systems. This project aims to develop advanced technologies to optically levitate macroscopic (millimetre-sized) objects and nanoscopic (atomically thin) materials. Levitation platforms built by the investigatory team are based on the resonantly amplified radiation pressure of laser beams. This new type of optical levitation can provide ultimate isolation of the systems from external noise, making them extremely responsive to subtle environmen ....Resonator-enhanced quantum levitation of macroscopic systems. This project aims to develop advanced technologies to optically levitate macroscopic (millimetre-sized) objects and nanoscopic (atomically thin) materials. Levitation platforms built by the investigatory team are based on the resonantly amplified radiation pressure of laser beams. This new type of optical levitation can provide ultimate isolation of the systems from external noise, making them extremely responsive to subtle environmental changes. These platforms could be turned into sharp instruments for measuring metrological variables of interest and probing new physics. Quantum optical techniques could be developed to optimise the sensitivity of levitated systems to levels that allow the exploration of quantum and gravitational physics.Read moreRead less
Performing cold microwave measurements with warm diamonds. Detecting weak microwave signals at room temperature is an exceptionally difficult task, due to the excessive thermal microwave noise that exists all around us. At present, the best microwave receivers must be cooled to cryogenic temperatures, restricting their widespread use. This project aims to apply diamond-based quantum technologies to achieve unprecedented microwave signal detection sensitivities with a room-temperature setup, prov ....Performing cold microwave measurements with warm diamonds. Detecting weak microwave signals at room temperature is an exceptionally difficult task, due to the excessive thermal microwave noise that exists all around us. At present, the best microwave receivers must be cooled to cryogenic temperatures, restricting their widespread use. This project aims to apply diamond-based quantum technologies to achieve unprecedented microwave signal detection sensitivities with a room-temperature setup, providing more accessible ultra-low noise detectors. The ability to measure weak microwave signals is crucial for a range of sectors and the results of this project are expected to have applications in defence (radar), space exploration (satellite communication), and fundamental research (spectroscopy).Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230100144
Funder
Australian Research Council
Funding Amount
$415,154.00
Summary
Quantum-enabled super-resolution imaging. The aim is to design large scale, quantum-enabled imaging systems to boost the resolution of state-of-the-art instruments by three to five orders of magnitude. Using the toolbox of quantum information and quantum optics, the project expects to generate novel methods for 2D and 3D imaging, and precision measurements that can reach fundamental limits. Imaging is critical in much of today's research. The unparalleled resolution can benefit a broad range of ....Quantum-enabled super-resolution imaging. The aim is to design large scale, quantum-enabled imaging systems to boost the resolution of state-of-the-art instruments by three to five orders of magnitude. Using the toolbox of quantum information and quantum optics, the project expects to generate novel methods for 2D and 3D imaging, and precision measurements that can reach fundamental limits. Imaging is critical in much of today's research. The unparalleled resolution can benefit a broad range of scientific fields, the medical and the defence sector by resolving objects otherwise impossible. This project will strengthen Australia’s position as a world leader in quantum technologies by presenting solutions to overcome critical bottlenecks in imaging methods in the optical domain.Read moreRead less
Mid-Career Industry Fellowships - Grant ID: IM230100396
Funder
Australian Research Council
Funding Amount
$764,472.00
Summary
Scalable semiconductor quantum processor with flip chip bonding technology. Australia is famous for quantum computing research based on electron spin in silicon quantum dot. This project aims to enable the manufacturing of such scalable quantum processor. Currently, superconducting quantum processor has reached >100 of qubits by the utilization of 3D integration fabrication technology such as flip chip bonding. Likewise, for semiconductor spin-qubit to grow, it is inevitable that novel 3D archit ....Scalable semiconductor quantum processor with flip chip bonding technology. Australia is famous for quantum computing research based on electron spin in silicon quantum dot. This project aims to enable the manufacturing of such scalable quantum processor. Currently, superconducting quantum processor has reached >100 of qubits by the utilization of 3D integration fabrication technology such as flip chip bonding. Likewise, for semiconductor spin-qubit to grow, it is inevitable that novel 3D architecture by expanding the building block to the next dimension must be explored to pave the way to scalable semiconductor quantum processor. This project will spearhead Australia's semiconductor quantum processor to the realm of hundreds of qubits and put this technology on par with superconducting quantum processor.Read moreRead less
Polarons in flatland. This project aims to generate new theories of excitons (the solid-state analogue of hydrogen atoms) in charge-doped atomically thin semiconductors. Such theories are urgently needed to describe the response to external probes, such as electric fields, of a range of novel materials that have emerged in recent years. The novelty is to treat the behaviour of semiconductors as a quantum impurity problem, where the excitons become modified by the surrounding electrons to form ne ....Polarons in flatland. This project aims to generate new theories of excitons (the solid-state analogue of hydrogen atoms) in charge-doped atomically thin semiconductors. Such theories are urgently needed to describe the response to external probes, such as electric fields, of a range of novel materials that have emerged in recent years. The novelty is to treat the behaviour of semiconductors as a quantum impurity problem, where the excitons become modified by the surrounding electrons to form new types of particles. A greater understanding of the impurity problem in 2D materials would ultimately facilitate their use in emerging technologies that combine electronics with photonics, for use in ultra-low-power devices such as photodectectors, LEDs, and lasers.Read moreRead less
A few-body perspective on polaron physics and polaron interactions. This project aims to develop novel approaches to investigate one of the most celebrated quasiparticles, polarons, and polaron interactions, which plays a critical role in understanding the properties and functionalities of various advanced materials. However, the complexity of real materials poses challenges to a fundamental understanding. This project innovatively applies the clean and controllable cold-atom system to simulate ....A few-body perspective on polaron physics and polaron interactions. This project aims to develop novel approaches to investigate one of the most celebrated quasiparticles, polarons, and polaron interactions, which plays a critical role in understanding the properties and functionalities of various advanced materials. However, the complexity of real materials poses challenges to a fundamental understanding. This project innovatively applies the clean and controllable cold-atom system to simulate the same physics, where an innovative integration of few-body formalisms will be developed and precisely tested. The new knowledge generated in this project expects to shed new insight into polaron physics and pave the way to engineer polaron-based materials for applications in emergent quantum technologies.
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Making Strongly Interacting Photons. This theoretical project aims to investigate strongly correlated polaritons in quantum physics. Known as quantum fluids of light, polaritons are half-light, half-matter particles exhibiting frictionless, zero-energy-cost flows, an astonishing quantum behaviour known as superfluidity. This project expects to make a breakthrough in our understanding of polaritons in the strongly interacting regime far from equilibrium and fill in the knowledge gap towards the r ....Making Strongly Interacting Photons. This theoretical project aims to investigate strongly correlated polaritons in quantum physics. Known as quantum fluids of light, polaritons are half-light, half-matter particles exhibiting frictionless, zero-energy-cost flows, an astonishing quantum behaviour known as superfluidity. This project expects to make a breakthrough in our understanding of polaritons in the strongly interacting regime far from equilibrium and fill in the knowledge gap towards the realisation of a superfluid of light at room temperature. This should open a new era of quantum polaritonics that forms the basis for energy-efficient laser and all-optical transistor, establishing Australia as a world leader in commercialising novel photonic technologies.Read moreRead less