Proximity effects and new correlated phases in closely spaced quantum electronic devices. The aim of this project is to understand the interactions between quantum electronic devices when they are brought into close proximity. A detailed knowledge of these interactions and how to control them is important both for conintued miniaturisation in the semiconductor industry, and for the fundamental understanding of new quantum ground states. To achieve these goals new coupled device designs will be e ....Proximity effects and new correlated phases in closely spaced quantum electronic devices. The aim of this project is to understand the interactions between quantum electronic devices when they are brought into close proximity. A detailed knowledge of these interactions and how to control them is important both for conintued miniaturisation in the semiconductor industry, and for the fundamental understanding of new quantum ground states. To achieve these goals new coupled device designs will be engineered in collaboration with NTT's Basic Research Laboratories in Japan. Theses novel devices will be used to study fundamental correlations in quantum semiconductor systems, with the possibility of forming new correlated states of matter such as electron-hole superfluids.Read moreRead less
Electronics with spin: Investigating spin-dependent electrical properties of semiconductor nano-devices. Devices such as the integrated circuit and semiconductor lasers are products of basic research, and form the basis of new industries that have revolutionised society. Quantum physics was the science of the 20th century and is likely to become a key technology of the 21st century. This project will keep Australia at the forefront of the search for new and potentially commercially useful applic ....Electronics with spin: Investigating spin-dependent electrical properties of semiconductor nano-devices. Devices such as the integrated circuit and semiconductor lasers are products of basic research, and form the basis of new industries that have revolutionised society. Quantum physics was the science of the 20th century and is likely to become a key technology of the 21st century. This project will keep Australia at the forefront of the search for new and potentially commercially useful applications of quantum physics. The project will also provide training for Australian students to work in a cutting-edge semiconductor research facility, and involves linkages with leading international laboratories including Massey University (NZ), the University of Cambridge (UK), and NTT Basic Research Labs (Japan). Read moreRead less
Generalized imaging systems incorporating hybrid hardware-software optics. Fundamental optics research underpins the commercial optical technologies of tomorrow. Modern examples of such evolution, from the fundamental to the commercial, include lasers, LED traffic lights, thin-screen computer monitors and digital cameras. The recent advent of accessible powerful computers, together with recent advances in optical physics, promise a powerful merging of computing and optical technologies into so ....Generalized imaging systems incorporating hybrid hardware-software optics. Fundamental optics research underpins the commercial optical technologies of tomorrow. Modern examples of such evolution, from the fundamental to the commercial, include lasers, LED traffic lights, thin-screen computer monitors and digital cameras. The recent advent of accessible powerful computers, together with recent advances in optical physics, promise a powerful merging of computing and optical technologies into so-called virtual optical systems in which the computer processes optical information in a manner very similar to lenses. In particular, the computer may be used to decode distorted images provided by an imperfect imaging system. Read moreRead less
Magnetic ground state and dynamics in high temperature superconductors. This project is aimed at studies of novel advanced materials. It will contribute to research at the leading edge of fundamental physics. This is an international project that incorporates collaboration with two leading German experimental groups. This raises the profile of the project internationally. This collaboration may bring some experiments of overseas scientists to ANSTO OPAL reactor and hence facilitate interactions ....Magnetic ground state and dynamics in high temperature superconductors. This project is aimed at studies of novel advanced materials. It will contribute to research at the leading edge of fundamental physics. This is an international project that incorporates collaboration with two leading German experimental groups. This raises the profile of the project internationally. This collaboration may bring some experiments of overseas scientists to ANSTO OPAL reactor and hence facilitate interactions between Australian and overseas experimental groups.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
Theoretical studies of strongly correlated quantum states in novel condensed matter systems. Strongly correlated quantum electronic and magnetic systems represent one of the most active and exciting areas of condensed matter physics, and one that will continue to have a major bearing on technology. We will pursue an extensive program of research into many aspects of this field, using a variety of analytical and numerical methods, in many of which we are among the world leaders. The project will ....Theoretical studies of strongly correlated quantum states in novel condensed matter systems. Strongly correlated quantum electronic and magnetic systems represent one of the most active and exciting areas of condensed matter physics, and one that will continue to have a major bearing on technology. We will pursue an extensive program of research into many aspects of this field, using a variety of analytical and numerical methods, in many of which we are among the world leaders. The project will add significantly to understanding of the physics of quantum phase transitions, spin-liquids, novel superconductors, and other related phenomena, and of the properties of quantum lattice models.Read moreRead less
Interlayer magnetoresistance of strongly correlated electron materials. The continued rapid expansion of information and entertainment technology requires new materials and devices for information storage. State of the art computer and iPod memories utilise advanced materials composed of layers of atoms, recognised by the 2007 Nobel Prize in Physics. These materials have metallic properties quite unlike those of simple metals such as copper and brass. This research will lead to a greater underst ....Interlayer magnetoresistance of strongly correlated electron materials. The continued rapid expansion of information and entertainment technology requires new materials and devices for information storage. State of the art computer and iPod memories utilise advanced materials composed of layers of atoms, recognised by the 2007 Nobel Prize in Physics. These materials have metallic properties quite unlike those of simple metals such as copper and brass. This research will lead to a greater understanding of and ability to design the next generation of materials. Australia's capacity for research and development in this scientifically challenging and technologically important field will be enhanced by this project. Read moreRead less
The theory of interferometers in nano-scale electronics. Soon the electronic circuits in computer chips will be so small that new effects due to quantum phyiscs will become important.
The proposed research will provide a better understanding of a range of nano-scale electronic devices including electron interferometers based on quantum points contacts and quantum dots.
Sepcifically, a new understanding of quantum coherent phenomena
in nano-scale interferometers will offers a potential ap ....The theory of interferometers in nano-scale electronics. Soon the electronic circuits in computer chips will be so small that new effects due to quantum phyiscs will become important.
The proposed research will provide a better understanding of a range of nano-scale electronic devices including electron interferometers based on quantum points contacts and quantum dots.
Sepcifically, a new understanding of quantum coherent phenomena
in nano-scale interferometers will offers a potential application
to other quantum technologies important to the future
of computing.
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Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate fr ....Frozen linear and nonlinear light. Frozen light refers to the observation that light inside particular media can be much brighter than outside it, essentially because it bounced around many times before leaving. Such light has many advantages which have applications in optical signal processing, lasers, and in other optical devices. Until now frozen light has only been studied in a small range of geometries and only at low intensities. In this fundamental research project we will investigate frozen light, its generation and its properties at low and high intensities, systematically, and we will assess how it can be harnessed for potential applications.Read moreRead less
Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass opti ....Light-matter interactions in microstructured optical waveguides for nonlinear optical signal processing. The challenge of conceiving and constructing the necessary components and devices for the next generation of lightwave telecommunications systems is a profound one. This issue is urgent as the current operating principles of switches, filters and sources and other devices simply do not allow for the upgrade to the extremely high data transmission speeds that will be required. Using glass optical fibres as the starting point, we will devise, demonstrate and analyze these novel components, leveraging microstructured optical fibre technology and novel fabrication techniques, which are among the most recent developments in optical fibre research.
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