Crossing quantum-classical boundaries in a single particle. This project is aimed at constructing and observing an individual quantum system that can exhibit chaotic behaviour under controllable conditions. It is a long-sought goal of modern physics that can become reality for the first time in the world, thanks to the unique availability in Australia of the most quantum-coherent single spin ever made and a long history of theoretical advances in the field. Turning a spin into a chaotic system w ....Crossing quantum-classical boundaries in a single particle. This project is aimed at constructing and observing an individual quantum system that can exhibit chaotic behaviour under controllable conditions. It is a long-sought goal of modern physics that can become reality for the first time in the world, thanks to the unique availability in Australia of the most quantum-coherent single spin ever made and a long history of theoretical advances in the field. Turning a spin into a chaotic system will uncover the true nature of the quantum-classical boundary, and verify whether an underlying classical chaotic dynamics ultimately influences the behaviour of quantum systems. It is expected that the discoveries made will illuminate the path towards the technological exploitation of increasingly complex quantum devices.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100088
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Self-calibrating quantum devices. This project aims to improve control over quantum systems. It will develop self-calibrating quantum devices, the equivalent of Noise Cancelling Headphones for quantum systems. The project will create filtering protocols, suppressing characterised noise via appropriate controls. This is expected to lead to greater control over systems, demanded by quantum computers and nano devices, like next generation computer chips.
Symmetry and topology for quantum information. This project aims to develop improved, less resource-intensive methods to store and process information in quantum computers. Quantum computers large enough to solve practical problems are hugely expensive. This project will use the scientific understanding of quantum many-body systems to protect information from noise with low overhead. More efficient fault-tolerant protocols are expected to benefit experimental quantum computing research, simplify ....Symmetry and topology for quantum information. This project aims to develop improved, less resource-intensive methods to store and process information in quantum computers. Quantum computers large enough to solve practical problems are hugely expensive. This project will use the scientific understanding of quantum many-body systems to protect information from noise with low overhead. More efficient fault-tolerant protocols are expected to benefit experimental quantum computing research, simplifying the task of building practical, commercially relevant quantum computers in the medium term. This may also lead to the development of a new-high tech industry in quantum technology.Read moreRead less
Ultimate quantum limits to coherence. This project aims to discover the ultimate quantum limits to optical coherence. Quantum physics underpin the miniaturisation of technology, and quantum devices can do things better, often with vastly fewer resources, than conventional devices. Lasers underpin most modern optical technologies, and have been studied for decades, but the ultimate quantum limits are unknown. To find them, this project will use theoretical techniques that have not hitherto been c ....Ultimate quantum limits to coherence. This project aims to discover the ultimate quantum limits to optical coherence. Quantum physics underpin the miniaturisation of technology, and quantum devices can do things better, often with vastly fewer resources, than conventional devices. Lasers underpin most modern optical technologies, and have been studied for decades, but the ultimate quantum limits are unknown. To find them, this project will use theoretical techniques that have not hitherto been combined. This project will likely influence the long-term development of lasers and other quantum devices and underpin innovation in miniaturised optical technology and other quantum devices, leading ultimately to commercial products that yield a better quality of life.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL150100019
Funder
Australian Research Council
Funding Amount
$3,041,282.00
Summary
Precision laser levitation for quantum metrology and gravitational sensing. Precision laser levitation for quantum metrology and gravitational sensing: This fellowship project aims to levitate macroscopic objects using only laser beams, to provide a new tool to test physics theories. Strong laser beams can exert sufficient force to counteract gravity and make an object levitate. In contrast to other forms of levitation, laser levitation is scatter-free and can preserve system coherence. It has s ....Precision laser levitation for quantum metrology and gravitational sensing. Precision laser levitation for quantum metrology and gravitational sensing: This fellowship project aims to levitate macroscopic objects using only laser beams, to provide a new tool to test physics theories. Strong laser beams can exert sufficient force to counteract gravity and make an object levitate. In contrast to other forms of levitation, laser levitation is scatter-free and can preserve system coherence. It has superior optical and mechanical quality factors and complete information of the system dynamics is retained. This allows laser levitation to be turned into a highly controllable and ultra-sensitive device capable of detecting minute environmental changes. This research aims to probe the relationship between quantum and gravitational physics and develop laser levitation into a precision instrument for the sensing of gravity. Laser levitation has the potential to be developed into technology for mineral exploration and environmental sensing.Read moreRead less
Coherent Laser Levitation for Precision Sensing and Enabling Science. When light collides with matter, it may exert a force called radiation pressure. This project aims to use radiation pressure to levitate a small mirror. Using a tripod of laser beams, it is possible to levitate and trap the mirror in a stable position. Radiation pressure has been used before to levitate, but previous work has always involved scattering light from the levitating object. This project proposes the use of a high q ....Coherent Laser Levitation for Precision Sensing and Enabling Science. When light collides with matter, it may exert a force called radiation pressure. This project aims to use radiation pressure to levitate a small mirror. Using a tripod of laser beams, it is possible to levitate and trap the mirror in a stable position. Radiation pressure has been used before to levitate, but previous work has always involved scattering light from the levitating object. This project proposes the use of a high quality mirror, allowing the collection of the reflected light and the accurate measurement and control of the position of the mirror as it floats on the laser beams. Using the unique properties of the floating mirror, it will be possible to search for signatures of quantum gravity and develop tools for ultra-precision metrology.Read moreRead less
Quantum equilibration. This project will shed light on a fundamental problem in physics - how do fragile quantum systems, entirely isolated from the rest of the world, return to equilibrium when disturbed from their natural state? Our results will provide a theoretical underpinning for the development of quantum simulators that can be used for the design of advanced materials.
Complex quantum dynamics for technological applications. This project aims to characterise dynamics of a quantum system immersed in a complex surrounding, such as a quantum computer interacting with an environment that remembers the computer’s past. Since there are no known methods for battling the effects of the environment on the computer when they are intertwined, this project will develop tools to combat these adverse effects. The project will discover physics of complex dynamics and investi ....Complex quantum dynamics for technological applications. This project aims to characterise dynamics of a quantum system immersed in a complex surrounding, such as a quantum computer interacting with an environment that remembers the computer’s past. Since there are no known methods for battling the effects of the environment on the computer when they are intertwined, this project will develop tools to combat these adverse effects. The project will discover physics of complex dynamics and investigate unexplored physical phenomena in the laboratory, like an antenna of photosynthetic systems that use complex surroundings for efficient and fast energy transport. The project is expected to help build new and improved quantum machines.Read moreRead less
Bulk-boundary correspondence in quantum many-body systems. This project will develop theoretical and numerical methods to explore how the bulk properties of quantum materials at low temperature are manifested on the edge of the material. Characterising this bulk-boundary correspondence will uncover new regimes of physics and underpin the development of powerful quantum technologies in the laboratory.
Discovery Early Career Researcher Award - Grant ID: DE120101498
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Superspace and dualities in supersymmetric field theories, supergravity and string theory. Supersymmetry, supergravity and string theory have represented the most promising frontiers of high-energy theoretical physics. This project will develop new techniques and explore novel dynamical features at the forefront of some of the most exiting fields of fundamental physics.