Unconditional photonic entanglement verification and quantum metrology using fast, ultra-high-efficiency photon detectors. Scientists can currently only give in-principle demonstrations of the powerful advantages offered by the quantum physics of photons – particles of light. A true quantum technology revolution, that genuinely exploits photons’ exotic nature, requires methods and apparatus that work unconditionally. The main barrier is the extreme fragility of quantum properties due to unavoida ....Unconditional photonic entanglement verification and quantum metrology using fast, ultra-high-efficiency photon detectors. Scientists can currently only give in-principle demonstrations of the powerful advantages offered by the quantum physics of photons – particles of light. A true quantum technology revolution, that genuinely exploits photons’ exotic nature, requires methods and apparatus that work unconditionally. The main barrier is the extreme fragility of quantum properties due to unavoidable losses. This project will overcome this barrier by developing innovative loss-tolerant protocols and devices that unconditionally show and exploit quantum effects, both for long-distance applications and ultra-precise measurement technologies. This collaboration will bring the world’s best photon detectors to Australia, as a key resource for this work and for future research.Read moreRead less
Resources for Quantum Networks. In classical information theory communication is an important resource. In quantum information theory there are the additional resources of entanglement and quantum communication. The aim of this project is to establish a complete theory of resources for quantum networks, by determining the relation between these resources, their symmetry properties, and effective ways of calculating capacities. Critical issues, such as the networking of quantum computers, quan ....Resources for Quantum Networks. In classical information theory communication is an important resource. In quantum information theory there are the additional resources of entanglement and quantum communication. The aim of this project is to establish a complete theory of resources for quantum networks, by determining the relation between these resources, their symmetry properties, and effective ways of calculating capacities. Critical issues, such as the networking of quantum computers, quantum teleportation and secure communication, require a complete theory of resources. The expected outcome of this project is a rigorous foundation for resources in quantum information that may be used to address these issues.Read moreRead less
Quantum physics and complexity. How much information about a system’s present is needed to predict its future? This project aims to show that the answer fundamentally depends on how information is stored. Simulations of partially random processes are critical in real-world applications. Surprisingly, theory suggests that a simulation must store much more classical data (like bits) than is required to determine its output. This wastes precious resources. Via optical quantum information experiment ....Quantum physics and complexity. How much information about a system’s present is needed to predict its future? This project aims to show that the answer fundamentally depends on how information is stored. Simulations of partially random processes are critical in real-world applications. Surprisingly, theory suggests that a simulation must store much more classical data (like bits) than is required to determine its output. This wastes precious resources. Via optical quantum information experiments, the project aims to demonstrate and characterise how storing and handling data in quantum states massively reduces this complexity overhead. Another goal is to use novel quantum optics ideas to greatly reduce communication complexity in important remote processing tasks.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100356
Funder
Australian Research Council
Funding Amount
$327,216.00
Summary
Quantum measurements: new, better, easier. This project aims to: engineer new state-of-the-art quantum measurements; devise the best ways of sensing quantum signals; and make quantum measurements and characterisation of large quantum systems easier to do. Quantum measurements are the principal means by which we gain access to and characterise the quantum world. The new, better and easier measurements that should result from this project will greatly advance quantum technologies. Specifically, th ....Quantum measurements: new, better, easier. This project aims to: engineer new state-of-the-art quantum measurements; devise the best ways of sensing quantum signals; and make quantum measurements and characterisation of large quantum systems easier to do. Quantum measurements are the principal means by which we gain access to and characterise the quantum world. The new, better and easier measurements that should result from this project will greatly advance quantum technologies. Specifically, they should allow for more efficient characterisation of quantum computers and enable us to engineer the ultimate quantum sensors, enhance mineral prospecting; and make building a quantum computer practical.Read moreRead less
Manufacturing, controlling, manipulating and measuring continuous-variable quantum entanglement. Quantum entanglement is a feature of the quantum world which results in objects, which once interacted, remain interlinked even when separated by vast distances. We are approaching the stage where this so-called "spooky action at a distance" will be technologically useful. This project aims to place Australia at the front of quantum entanglement research.
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
Entanglement as resource for quantum technology. This project focuses on groundbreaking research in quantum information theory, an exciting new area of fundamental physics that underpins the development of quantum technologies. Australia has already invested heavily in one particular quantum technology: computation. Our project, if successful, will enable an Australian research effort into other quantum technologies for communication, metrology, data storage and security. This project will as ....Entanglement as resource for quantum technology. This project focuses on groundbreaking research in quantum information theory, an exciting new area of fundamental physics that underpins the development of quantum technologies. Australia has already invested heavily in one particular quantum technology: computation. Our project, if successful, will enable an Australian research effort into other quantum technologies for communication, metrology, data storage and security. This project will assist in elevating Australia to a major international research centre in quantum information theory, complementing its existing strength in experiment, and will provide extensive training of early career researchers.Read moreRead less
Optical realisations of continuous-variable quantum information. The project aims to develop a framework for optical realisations of continuous-variable quantum information. Such realisations offer the potential for major technological advances in quantum information processing in the near future, but are currently impeded by the lack of a well-defined theoretical foundation. This project aims to construct such a foundation, including energy cutoffs, detector resolution, and finite resources. ....Optical realisations of continuous-variable quantum information. The project aims to develop a framework for optical realisations of continuous-variable quantum information. Such realisations offer the potential for major technological advances in quantum information processing in the near future, but are currently impeded by the lack of a well-defined theoretical foundation. This project aims to construct such a foundation, including energy cutoffs, detector resolution, and finite resources. Feasible experiments to test and exploit continuous-variable quantum information processing will be proposed. The resulting framework will allow the field to progress beyond proof-of-principle demonstrations and to develop new, technology-driven quantum information protocols.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.
Discovery Early Career Researcher Award - Grant ID: DE130100575
Funder
Australian Research Council
Funding Amount
$373,944.00
Summary
Quantum enhancement for ultra-precise atomic sensors. This project will investigate methods for drastically improving the sensitivity of measurement devices derived from atom interferometers. This will enable experimental tests of certain aspects of fundamental physics, as well as practical tools such as ultra-precise geodesy for minerals exploration.