Building up quantum electronics with tailored semiconductor nanostructures. This project aims to develop nanoscale indium arsenide/ gallium antimonide (InAs/GaSb) devices produced ‘from the bottom up’ using three-dimensional templated semiconductor growth methods. This material has a pair of electron and hole layers separated by a few nanometres, which provide access to states of matter such as exciton condensates and topological insulators with potential use in quantum information technologies. ....Building up quantum electronics with tailored semiconductor nanostructures. This project aims to develop nanoscale indium arsenide/ gallium antimonide (InAs/GaSb) devices produced ‘from the bottom up’ using three-dimensional templated semiconductor growth methods. This material has a pair of electron and hole layers separated by a few nanometres, which provide access to states of matter such as exciton condensates and topological insulators with potential use in quantum information technologies. The project will use templates growth to create devices where the InAs/GaSb interface sits perpendicular to the device plane. This project’s work on growth, design and production of nanoscale devices will give Australia’s transitioning economy competitive advantage and agility in critical sectors of nanotechnology, quantum technologies and energy efficient devices.Read moreRead less
Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device developmen ....Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device development in silicon with potential for building devices with new functionality and improved performance for applications in quantum information technologies, enhancing Australia’s global reputation in quantum information science and assisting emerging industries in this high-valued added area.Read moreRead less
Topological superconductivity and spin electronics in silicon and germanium. This project will exploit recent breakthroughs in materials growth, theoretical physics and micromagnet technology to design and build a new platform for future quantum devices and topological quantum computers. Instead of using exotic materials, we will fabricate hybrid superconductor-semiconductor devices with conventional silicon and germanium semiconductors, using the same nanofabrication techniques that industry us ....Topological superconductivity and spin electronics in silicon and germanium. This project will exploit recent breakthroughs in materials growth, theoretical physics and micromagnet technology to design and build a new platform for future quantum devices and topological quantum computers. Instead of using exotic materials, we will fabricate hybrid superconductor-semiconductor devices with conventional silicon and germanium semiconductors, using the same nanofabrication techniques that industry uses to create integrated circuits. The outcome will be an entirely new approach to hosting topological modes, in an architecture that can be scaled to make topological based qubits, using industrially compatible semiconductors. Read moreRead less
Engineering one dimensional quantum phases with nanostructured Josephson junction arrays. This project aims to engineer novel quantum electronic devices based on strongly-coupled, one-dimensional superconducting microcircuits. These will be realised using chains of nanoscale superconducting islands fabricated on a chip. The project expects to achieve a special type of insulating state, where individual charges can be transported one by one. This would be significant as a primary standard that pr ....Engineering one dimensional quantum phases with nanostructured Josephson junction arrays. This project aims to engineer novel quantum electronic devices based on strongly-coupled, one-dimensional superconducting microcircuits. These will be realised using chains of nanoscale superconducting islands fabricated on a chip. The project expects to achieve a special type of insulating state, where individual charges can be transported one by one. This would be significant as a primary standard that precisely links time (or frequency) to charge. The project also aims to create a current mirror device, in which a supercurrent sent down one chain induces a reflected supercurrent in the other, forming the basis of a new superconducting quantum bit. Other devices will be used to study a simplified model related to high temperature superconductors.Read moreRead less
Hole quantum dots - a new spin on quantum information technology. Most electronic devices are powered by conventional transistors that use a 50 year old technology which is nearing the end of its lifetime. Spin-based electronics uses the electron's spin instead of its charge to store, process and transfer information. Although half of all transistors on a chip use holes, almost all research has focussed on electrons. Holes have completely different spin properties than electrons and are predicte ....Hole quantum dots - a new spin on quantum information technology. Most electronic devices are powered by conventional transistors that use a 50 year old technology which is nearing the end of its lifetime. Spin-based electronics uses the electron's spin instead of its charge to store, process and transfer information. Although half of all transistors on a chip use holes, almost all research has focussed on electrons. Holes have completely different spin properties than electrons and are predicted to have significant advantages for spin based quantum information processing. This project aims to develop single hole quantum dots, test theoretical predictions of the superiority of holes over electrons and develop new techniques for all-electrical spin manipulation.Read moreRead less
A new spin on semiconductor quantum information technology. Future advances in computer technology will exploit quantum physics to deliver increased computational power, either through new materials or quantum information approaches. However although half of the 100 billion transistors in your iphone use holes to operate, most semiconductor quantum research has focussed on electrons. Holes have completely different quantum spin properties than electrons; recent advances show holes have highly de ....A new spin on semiconductor quantum information technology. Future advances in computer technology will exploit quantum physics to deliver increased computational power, either through new materials or quantum information approaches. However although half of the 100 billion transistors in your iphone use holes to operate, most semiconductor quantum research has focussed on electrons. Holes have completely different quantum spin properties than electrons; recent advances show holes have highly desirable properties for spin based quantum information. This project will work with leading European laboratories to develop quantum computer components based on hole spin in quantum dots in industrially relevant semiconductors, and demonstrate a pathway towards a scalable quantum computer architecture.
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ARC Centre of Excellence for Engineered Quantum Systems. The future of technology lies in controlling the quantum world. The ARC Centre of Excellence for Engineered Quantum Systems (EQuS) will deliver the building blocks of future quantum technologies and, critically, ensure Australian primacy in this endeavour. Three strategic research programs will target Quantum Measurement and Control; Synthetic Quantum Systems and Simulation; and Quantum-Enabled Sensors and Metrology. Within these programs, ....ARC Centre of Excellence for Engineered Quantum Systems. The future of technology lies in controlling the quantum world. The ARC Centre of Excellence for Engineered Quantum Systems (EQuS) will deliver the building blocks of future quantum technologies and, critically, ensure Australian primacy in this endeavour. Three strategic research programs will target Quantum Measurement and Control; Synthetic Quantum Systems and Simulation; and Quantum-Enabled Sensors and Metrology. Within these programs, our Centre will exploit the deepest principles and resources of quantum physics to solve specific problems in engineering, chemistry biology and medicine, stimulating the Australian scientific and engineering communities to exploit (and benefit from) transformative quantum devices.Read moreRead less
Single hole quantum dots for spin-based electronics. This project will support a basic research initiative in an area with enormous potential for the trillion dollar semiconductor industry. Working with the international University partners, we will develop new electronic devices that use holes, rather than electrons, to operate.