Quantum-Inspired Machine Learning. This project aims to develop new machine learning techniques based around the close correspondence between
neural networks used in deep learning, and tensor networks used in quantum physics. Tensor networks are a form of information compression that is useful in machine learning to construct a compact representation of a large data set in a way that is more amenable to understanding the internal structure than a deep neural network. Expected outcomes of this pr ....Quantum-Inspired Machine Learning. This project aims to develop new machine learning techniques based around the close correspondence between
neural networks used in deep learning, and tensor networks used in quantum physics. Tensor networks are a form of information compression that is useful in machine learning to construct a compact representation of a large data set in a way that is more amenable to understanding the internal structure than a deep neural network. Expected outcomes of this project include more resilient algorithms for machine learning, and new ways to represent quantum states that will impact fundamental physics. The resulting benefits include enhanced capacity for cross-discipline collaboration, and improved methods for future industrial applications.
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Solid-state quantum communication technology. This project will develop the quantum information devices required to create a quantum communication network for the ultra-secure transmission of data. The key technological challenge is to entangle the quantum state of two crystals separated by kilometres, and maintain this entanglement for many seconds.
Observing Einstein-Podolsky-Rosen entanglement with ultracold atomic gases. As a fundamental test of quantum mechanics, the project will demonstrate for the first time the famous Einstein-Podolsky-Rosen paradox in the regime of a macroscopic number of entangled massive particles. As well as enabling the design of new gravitational sensors, the outcomes will give insights into the unification of quantum theory with gravity.
Quantum Phase Transitions In- and Out-of-Equilibrium in Optical Lattices. This project aims to contribute to understanding the physics of quantum many-body systems. A complete understanding of phase transitions in strongly interacting quantum many-body systems is a key step towards solving several open problems in modern physics (eg high temperature superconductors). However, they are extremely difficult to study theoretically or in traditional experiments, due to the underlying strong quantum c ....Quantum Phase Transitions In- and Out-of-Equilibrium in Optical Lattices. This project aims to contribute to understanding the physics of quantum many-body systems. A complete understanding of phase transitions in strongly interacting quantum many-body systems is a key step towards solving several open problems in modern physics (eg high temperature superconductors). However, they are extremely difficult to study theoretically or in traditional experiments, due to the underlying strong quantum correlations. This project plans to take an alternative approach using ultra-cold helium atoms in an optical lattice to form an analogue quantum simulator. This would provide access to a new experimental observable: many-body correlation functions, which should yield new insights. Understanding such systems more deeply may lead to the development of new quantum technologies based on this science.Read moreRead less
Quantum nonlocality tests with ultracold atoms. As a fundamental test of quantum mechanics, we will measure for the first time "spooky action-at-a-distance" for macroscopically large groups of atoms. As well as establishing limits to the size of new quantum devices such as gravitational sensors, we will provide insights into the unification of quantum theory with gravity.
Nonequilibrium states of polariton superfluids. This project aims to design novel nonequilibrium states of a polariton superfluid and to identify why some are more robust than others. Polaritons are hybrid particles of light and matter that exist in thin layers of a semiconductor. At high densities they form a superfluid, exhibiting quantised whirlpools and frictionless flow. The project aims to realise these states in the laboratory and to address one of the challenges of physics: predicting an ....Nonequilibrium states of polariton superfluids. This project aims to design novel nonequilibrium states of a polariton superfluid and to identify why some are more robust than others. Polaritons are hybrid particles of light and matter that exist in thin layers of a semiconductor. At high densities they form a superfluid, exhibiting quantised whirlpools and frictionless flow. The project aims to realise these states in the laboratory and to address one of the challenges of physics: predicting and controlling the emergent properties of materials far from equilibrium. The anticipated outcome is the generation of fundamental knowledge that could be used to guide the design of polaritonic devices such as novel optoelectronic devices for emitting and controlling light.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100315
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Quantum Simulation with Ultracold Metastable Helium in an Optical Lattice. Understanding the behaviour of electrons in a lattice has led to the development of numerous devices now taken for granted in everyday life. But there are still many open questions concerning strongly interacting electrons in a lattice, for example, an explanation of high temperature superconductivity. This is because modelling these systems is hard, due to the quantum correlations between particles, while impurities in s ....Quantum Simulation with Ultracold Metastable Helium in an Optical Lattice. Understanding the behaviour of electrons in a lattice has led to the development of numerous devices now taken for granted in everyday life. But there are still many open questions concerning strongly interacting electrons in a lattice, for example, an explanation of high temperature superconductivity. This is because modelling these systems is hard, due to the quantum correlations between particles, while impurities in solid state materials hinder experimental studies. This project aims to develop a quantum simulator using ultracold helium atoms in an optical lattice to model such systems. Correlation functions will be measured by detecting individual atoms, providing a new observable to characterise many-body lattice states.Read moreRead less
Many body correlations in a Bose Fermi gas. This project aims to create a degenerate Fermi gas of metastable helium atoms to study some basic properties of elementary quantum systems. The unique properties of helium provide access to observe many-body correlation functions. Expected outcomes are a new demonstration of the Pauli exclusion principle, where no two Fermions can be in the same location, and revealing the fundamental correlations that underlie many-body quantum systems. Correlations b ....Many body correlations in a Bose Fermi gas. This project aims to create a degenerate Fermi gas of metastable helium atoms to study some basic properties of elementary quantum systems. The unique properties of helium provide access to observe many-body correlation functions. Expected outcomes are a new demonstration of the Pauli exclusion principle, where no two Fermions can be in the same location, and revealing the fundamental correlations that underlie many-body quantum systems. Correlations between Fermions underpin many effects in physics, such as high temperature superconductivity and quantum magnetism. This knowledge will have an influence on the development of new quantum technologies, such as quantum computers.Read moreRead less
Quantum optical methods for entangled devices. This project aims to develop experimental quantum optics methods and techniques for enhancing the performance of sensitive devices. Entangled photons will be used to probe separate devices, yielding an improved detection of correlated signals. This new technique will benefit laboratory searches for new fundamental physics effects such as space-time fluctuations due to quantum gravity and exotic dark matter candidates. The project is expected to tr ....Quantum optical methods for entangled devices. This project aims to develop experimental quantum optics methods and techniques for enhancing the performance of sensitive devices. Entangled photons will be used to probe separate devices, yielding an improved detection of correlated signals. This new technique will benefit laboratory searches for new fundamental physics effects such as space-time fluctuations due to quantum gravity and exotic dark matter candidates. The project is expected to train scientists and students in advanced quantum methods, promoting and securing Australia's position as a leader in the development of quantum technologies. Read moreRead less
A quantum bus for large-scale diamond quantum computers. This project aims to experimentally demonstrate a device needed to bus quantum information between defect clusters in large scale quantum computers. Quantum computers could transcend limits of today’s ‘classical’ computers. Diamond is a proven platform for small-scale quantum computing and simple quantum algorithms have already been demonstrated using small clusters of diamond defects. To build a large-scale quantum computer that can reali ....A quantum bus for large-scale diamond quantum computers. This project aims to experimentally demonstrate a device needed to bus quantum information between defect clusters in large scale quantum computers. Quantum computers could transcend limits of today’s ‘classical’ computers. Diamond is a proven platform for small-scale quantum computing and simple quantum algorithms have already been demonstrated using small clusters of diamond defects. To build a large-scale quantum computer that can realise the potential of quantum computing, a device must be invented to bus quantum information between defect clusters. This project will experimentally demonstrate physical mechanisms that were theoretically identified for the operation of such a device. This is expected to make a quantum bus for large-scale diamond quantum computers possible.Read moreRead less