Implementing large-scale solid-state quantum computation. The goal of quantum computing research is to harness the properties of quantum mechanics to build computers that are exponentially more powerful than the computers of today. Along the way, many spin-off technologies for conventional computing and nanotechnology are expected. Realising the quantum computing dream is a daunting experimental challenge requiring both theoretical assurance that it is possible in principle, and theoretical guid ....Implementing large-scale solid-state quantum computation. The goal of quantum computing research is to harness the properties of quantum mechanics to build computers that are exponentially more powerful than the computers of today. Along the way, many spin-off technologies for conventional computing and nanotechnology are expected. Realising the quantum computing dream is a daunting experimental challenge requiring both theoretical assurance that it is possible in principle, and theoretical guidance as to the best method. We seek to provide this theoretical support for solid-state systems, and broaden the range of problems that such systems are demonstrably suited to tackle.Read moreRead less
Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy. The technique of Atom Location by Channelling Enhanced Microanalysis (ALCHEMI) has been explored extensively using Electron Energy Dispersive X-ray (EDX) measurements by many authors. The extension of this method to Electron Energy Loss Spectroscopy (EELS) is difficult due to the more complicated formulation of inner-shell ionization required under such experimental conditions. Issues such ....Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy. The technique of Atom Location by Channelling Enhanced Microanalysis (ALCHEMI) has been explored extensively using Electron Energy Dispersive X-ray (EDX) measurements by many authors. The extension of this method to Electron Energy Loss Spectroscopy (EELS) is difficult due to the more complicated formulation of inner-shell ionization required under such experimental conditions. Issues such as the "delocalization" of the ionization interaction and the significance of channelling of the scattered electron need to be addressed so that this method may be generally applicable. It is the aim of this project to extend this commonly used method to the topical field of EELS.Read moreRead less
The phase and inverse scattering problem for electrons multiply scattered by non-periodic solids. Theoretical methods for the inversion of multiple scattering of electrons in non-periodic solids will be obtained. This will vastly extend the range of utility of atomic resolution electron microscopy and electron tomography, where single scattering conditions are usually assumed. We will further develop our recent novel solutions to the phase problem from images and diffraction patterns (needed as ....The phase and inverse scattering problem for electrons multiply scattered by non-periodic solids. Theoretical methods for the inversion of multiple scattering of electrons in non-periodic solids will be obtained. This will vastly extend the range of utility of atomic resolution electron microscopy and electron tomography, where single scattering conditions are usually assumed. We will further develop our recent novel solutions to the phase problem from images and diffraction patterns (needed as a prelude to the inversion) that are robust in the presence of discontinuities in the phase (such as vortices). These phase retrieval methods will be useful not only for problems in electron optics but also in visible, x-ray, neutron and atom optics.Read moreRead less
Atomic resolution imaging and spectroscopy. This project will enhance Australia's reputation in atomic resolution imaging, positioning Australia as a major contributor to significant world research outcomes in the physical sciences. It contributes to the quality of our culture through the advancement of knowledge through the solution of problems of high scientific merit, provides training at the postdoctoral level and will produce several PhD graduates of the highest quality. This project streng ....Atomic resolution imaging and spectroscopy. This project will enhance Australia's reputation in atomic resolution imaging, positioning Australia as a major contributor to significant world research outcomes in the physical sciences. It contributes to the quality of our culture through the advancement of knowledge through the solution of problems of high scientific merit, provides training at the postdoctoral level and will produce several PhD graduates of the highest quality. This project strengthens collaborative international links with one of the worlds leading research facilities located at the Oak Ridge National Laboratory. The potential practical applications of this work should lead to direct economic benefits to Australia.Read moreRead less
Imaging in three dimensions beyond the nanoscale. After two decades of research the first wave of applications in nanotechnology and nanobiology is breaking. The economic stakes are high: nanostructured electronics and photonics will be the next epoch after transistors (1947) and the microprocessor (1971), and designer therapies and drugs will be in high demand. Immediately key to further progress in both areas is the ability to characterize structure in three dimensions at and beyond the nanosc ....Imaging in three dimensions beyond the nanoscale. After two decades of research the first wave of applications in nanotechnology and nanobiology is breaking. The economic stakes are high: nanostructured electronics and photonics will be the next epoch after transistors (1947) and the microprocessor (1971), and designer therapies and drugs will be in high demand. Immediately key to further progress in both areas is the ability to characterize structure in three dimensions at and beyond the nanoscale. This research project places Australia at the forefront in this endeavour, builds on the national knowledge and skills base in atomic resolution imaging and expands international collaborative research links.Read moreRead less
The Mechanics of Nanoscale Devices. Australian developments in biosensing, medical diagnostics, clean energy, communication and security technologies, are rapidly growing due to our mounting capacity in nanoscale fabrication. Vital for evolution of next-generation nanodevices is an understanding of how mechanical processes operate at such small scales. This application will contribute to this scientific knowledge base. This will in turn assist Australian industries to progress these applications ....The Mechanics of Nanoscale Devices. Australian developments in biosensing, medical diagnostics, clean energy, communication and security technologies, are rapidly growing due to our mounting capacity in nanoscale fabrication. Vital for evolution of next-generation nanodevices is an understanding of how mechanical processes operate at such small scales. This application will contribute to this scientific knowledge base. This will in turn assist Australian industries to progress these applications and devices, leading to economic, social and technological gains for the Australian community.Read moreRead less
Does High Temperature Superconductivity Reside in Plane or Charge Reservoir (CR) Oxygen, in YBa2Cu3O7 (YBC)? One of the outstanding problems in contemporary solid state physics concerns the mechanism of high temperature superconductivity (HTS). In particular, what binds charges that normally repel one another, into (Cooper) pairs? Closely related to this question is where the superconductivity resides in the material. We aim to answer the latter question in the much studied prototypical HTS YBa2 ....Does High Temperature Superconductivity Reside in Plane or Charge Reservoir (CR) Oxygen, in YBa2Cu3O7 (YBC)? One of the outstanding problems in contemporary solid state physics concerns the mechanism of high temperature superconductivity (HTS). In particular, what binds charges that normally repel one another, into (Cooper) pairs? Closely related to this question is where the superconductivity resides in the material. We aim to answer the latter question in the much studied prototypical HTS YBa2Cu3O7. In doing so we expect to demonstrate that phonons, widely believed not to play a role in HTS are in fact an important component in the HTS pairing mechanism.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210101581
Funder
Australian Research Council
Funding Amount
$411,000.00
Summary
Stability and Complexity: New insights from Random Matrix Theory. Complexity is a rule of nature: large ecosystems, the human brain, and turbulent fluids are merely a few examples of complex systems. This project aims to study and classify criteria of stability in large complex systems based on universal probabilistic models. This project expects to generate new important understanding of stability using cutting-edge techniques from random matrix theory. Expected outcomes of this project includ ....Stability and Complexity: New insights from Random Matrix Theory. Complexity is a rule of nature: large ecosystems, the human brain, and turbulent fluids are merely a few examples of complex systems. This project aims to study and classify criteria of stability in large complex systems based on universal probabilistic models. This project expects to generate new important understanding of stability using cutting-edge techniques from random matrix theory. Expected outcomes of this project include development and expansion of an innovative mathematical framework and techniques which allow a unified and universal approach to the question of stability in large complex systems. Read moreRead less
Single atom defined nanostructures: atom-electronics beyond the miniaturization limit. The emerging era of atom-electronics promises to revolutionise microelectronics in the 21st century by going beyond the conventional miniaturization limit of microelectronics. Emerging atom level fabrication and control techniques offer the promise of building devices whose fundamental components are built atom-by-atom and function under completely new rules. This Discovery Project will apply critical new theo ....Single atom defined nanostructures: atom-electronics beyond the miniaturization limit. The emerging era of atom-electronics promises to revolutionise microelectronics in the 21st century by going beyond the conventional miniaturization limit of microelectronics. Emerging atom level fabrication and control techniques offer the promise of building devices whose fundamental components are built atom-by-atom and function under completely new rules. This Discovery Project will apply critical new theoretical tools, in partnership with leading experimental groups, to enable the exploration of this technology and the creation of new and innovative applications which will have far reaching implications in all areas of society and significant national benefit.Read moreRead less
Imaging surface topography using Lloyd's Mirror in photo-emission electron microscopy. The wide-ranging and innovative nature of the proposal will significantly raise Australia's international profile in condensed matter physics through high impact publications and invited presentations at major international conferences. Researchers will be trained in cutting-edge electron microscopy and synchrotron science. A spin-off company will be formed to commercialise software for reconstructing surface ....Imaging surface topography using Lloyd's Mirror in photo-emission electron microscopy. The wide-ranging and innovative nature of the proposal will significantly raise Australia's international profile in condensed matter physics through high impact publications and invited presentations at major international conferences. Researchers will be trained in cutting-edge electron microscopy and synchrotron science. A spin-off company will be formed to commercialise software for reconstructing surface topography and generating movies of dynamic events. The development of new synchrotron based electron microscopy techniques will establish the expertise for the future creation of a dedicated nanotechnology beamline equipped with photo-emission electron microscopy which will have far reaching national benefit in the physical sciences.Read moreRead less