Simulating and verifying quantum circuits. This project aims to develop new theoretical and numerical tools to simulate intermediate-scale quantum computer circuits using today's existing computers. Such simulation tools are critically important to verify the performance of the next generation of quantum computing devices. Expected outcomes of this project include efficient algorithms to predict the outcomes of intermediate-scale (50 to 1000 qubit) quantum processors, and a clear identificatio ....Simulating and verifying quantum circuits. This project aims to develop new theoretical and numerical tools to simulate intermediate-scale quantum computer circuits using today's existing computers. Such simulation tools are critically important to verify the performance of the next generation of quantum computing devices. Expected outcomes of this project include efficient algorithms to predict the outcomes of intermediate-scale (50 to 1000 qubit) quantum processors, and a clear identification of the essential ingredients in a circuit that can allow for 'quantum advantage'. These tools will be used by quantum industries to benchmark quantum devices, certify their performance, and develop new efficient architectures for practical quantum computers.Read moreRead less
Pushing the digital limits in quantum simulation for advanced manufacturing. This Project aims to enhance the power of high-tech quantum simulators to meet the demands of computer-modelling intensive industries such as drug and vaccine design and new energy. Aligned to Australia’s innovation agenda and Advanced Manufacturing priority, the Project expects to maximise the performance of near- and mid-term quantum simulations using innovative quantum programming techniques related to digitisation a ....Pushing the digital limits in quantum simulation for advanced manufacturing. This Project aims to enhance the power of high-tech quantum simulators to meet the demands of computer-modelling intensive industries such as drug and vaccine design and new energy. Aligned to Australia’s innovation agenda and Advanced Manufacturing priority, the Project expects to maximise the performance of near- and mid-term quantum simulations using innovative quantum programming techniques related to digitisation and control. Expected outcomes include: better understanding of limits in industry-scale quantum computers and improved error mitigation techniques. This should generate long-term productivity increases across a range of important sectors of the Australian economy that benefit from access to more powerful computer modelling.Read moreRead less
Harnessing genuine quantum nonlocality. This project aims to develop the science and tools behind device-independent quantum security for information networks. These gold-standard protocols rely on genuine quantum nonlocality but, to date, the strict performance requirements have been unachievable for general practical cases. Further, the theory of nonlocality in multiparty networks is almost completely undeveloped. The project’s anticipated outcomes are novel experiment and theory to bypass bar ....Harnessing genuine quantum nonlocality. This project aims to develop the science and tools behind device-independent quantum security for information networks. These gold-standard protocols rely on genuine quantum nonlocality but, to date, the strict performance requirements have been unachievable for general practical cases. Further, the theory of nonlocality in multiparty networks is almost completely undeveloped. The project’s anticipated outcomes are novel experiment and theory to bypass barriers and open up nonlocal network protocols. It is also expected to rigorously establish that a single-photon wavefunction after a beamsplitter is truly nonlocal. Likely future benefits include secure random numbers, secure distributed information technology and world-best photon sources.Read moreRead less
Heisenberg-limited lasers: building the revolution. The project aims to design and build a revolutionary new type of laser based on the ground-breaking 2020 Nature Physics paper by the two Chief Investigators. The significance of this work is that it overturns 60 years of theory about the limits to laser coherence, by applying 21st century quantum theory and quantum technology to the problem. This project expects to greatly advance the theory and, by instigating a collaboration with world-leadin ....Heisenberg-limited lasers: building the revolution. The project aims to design and build a revolutionary new type of laser based on the ground-breaking 2020 Nature Physics paper by the two Chief Investigators. The significance of this work is that it overturns 60 years of theory about the limits to laser coherence, by applying 21st century quantum theory and quantum technology to the problem. This project expects to greatly advance the theory and, by instigating a collaboration with world-leading experimentalists working with superconducting quantum devices, to demonstrate a laser with coherence beyond what was thought possible. Benefits of the project should flow from the manifold applications for highly coherent radiation, including scaling up superconducting quantum computing.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.
Outmaneuvering correlated noise in quantum computers. The project aims to characterise and control quantum machines available today. These machines overwhelmingly suffer from noise with complex structures. Thus, a key target of the project is to develop a theory to describe and manipulate complex quantum processes. The project then intends to apply this theory to commercial-grade quantum computers. This approach is anticipated to lead to a new understanding of time-correlated complex quantum pro ....Outmaneuvering correlated noise in quantum computers. The project aims to characterise and control quantum machines available today. These machines overwhelmingly suffer from noise with complex structures. Thus, a key target of the project is to develop a theory to describe and manipulate complex quantum processes. The project then intends to apply this theory to commercial-grade quantum computers. This approach is anticipated to lead to a new understanding of time-correlated complex quantum processes and develop methods to enhance the performance of today's quantum computers. Noise characterisation and mitigation should have commercial value and benefit research groups working to develop quantum technologies, both in Australia and internationally.Read moreRead less
Quantum computation: through the algorithm and complexity theory lens. This project aims to advance our knowledge of quantum computation through the lens of algorithm and complexity theory. Three core areas of the theory will be examined: interactive computing models, query complexity, and circuit lower bounds. The expected outcomes include: revealing the quantum advantages of interactive computing models; techniques for verifying quantum devices in the cloud and quantum cloud computing in gener ....Quantum computation: through the algorithm and complexity theory lens. This project aims to advance our knowledge of quantum computation through the lens of algorithm and complexity theory. Three core areas of the theory will be examined: interactive computing models, query complexity, and circuit lower bounds. The expected outcomes include: revealing the quantum advantages of interactive computing models; techniques for verifying quantum devices in the cloud and quantum cloud computing in general; sharpening the separation between algorithm performance in quantum and classical query models; establishing both unconditional and conditional hardness results for quantum circuits. This comprehensive understanding will enhance Australia's research portfolio in the theory of quantum computing.Read moreRead less
Quantum measurement as a resource. Advanced quantum computers will use modular measurements significantly enhancing their capabilities. However, due to the noisy environment, the measurements may have nontrivial effects on the computation. Making best use of realistic (hence imperfect) measurements is a challenging problem that hinders the development of these technologies. This project, using modern tools of resource theory, aims to design optimal realistic measurement procedures for near-term ....Quantum measurement as a resource. Advanced quantum computers will use modular measurements significantly enhancing their capabilities. However, due to the noisy environment, the measurements may have nontrivial effects on the computation. Making best use of realistic (hence imperfect) measurements is a challenging problem that hinders the development of these technologies. This project, using modern tools of resource theory, aims to design optimal realistic measurement procedures for near-term noisy quantum devices. The expected outcomes of the project are refined methods to optimise quantum measurements in today's rudimentary quantum machines. This will provide a significant benefit to the Australian community, advancing the development of disruptive quantum technologies.Read moreRead less
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
Enhancing control capabilities and robustness in the engineering of quantum ensembles. This project will develop novel fundamental quantum ensemble control approaches and methodologies that are important to emerging quantum technology. The expected outcomes are new theories and powerful quantum control algorithms which will play an important role in establishing Australian industries based on quantum technology.