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
Spin-liquids, antiferromagnetism, and superconductivity in organic charge transfer salts: synthesis, neutron scattering and theory. Materials have driven the digital revolution. Understanding and controlling silicon has allowed us to make smaller devices that perform better; an iPhone has more computing power than a PC had ten years ago. For this remarkable trend to continue future devices will need to utilise novel physics and be made from new materials. We will grow crystals of organic molecul ....Spin-liquids, antiferromagnetism, and superconductivity in organic charge transfer salts: synthesis, neutron scattering and theory. Materials have driven the digital revolution. Understanding and controlling silicon has allowed us to make smaller devices that perform better; an iPhone has more computing power than a PC had ten years ago. For this remarkable trend to continue future devices will need to utilise novel physics and be made from new materials. We will grow crystals of organic molecules, whose properties derive from the correlated motion of the electrons in these materials. State-of-the-art 'neutron scattering' experiments will test theories of the way the electrons behave in these materials. We will answer fundamental questions, which is an important first step towards harnessing such effects for future technology.Read moreRead less
Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design bett ....Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design better materials and optimize the performance of organic solar cells and LEDs. 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 mathematics and physics of interacting systems. Much of the world around us involves the networked interaction between a large number of components. For example, such complex networks may be physical, biological, social or technical in nature and represent connections between magnetic spins, species, people or computers. This Project will provide a firm theoretical foundation for such complex interacting systems through an investigation of the fascinating mathematics and physics behind them. ....The mathematics and physics of interacting systems. Much of the world around us involves the networked interaction between a large number of components. For example, such complex networks may be physical, biological, social or technical in nature and represent connections between magnetic spins, species, people or computers. This Project will provide a firm theoretical foundation for such complex interacting systems through an investigation of the fascinating mathematics and physics behind them. This perspective from mathematical physics, in particular using the tools of statistical mechanics, will lead to a better understanding of many real-world complex systems.Read moreRead less
Solvable models on regular and random lattices in statistical mechanics and field theory. There are only a few solvable models in statistical mechanics and field theory, but those that are known give deep insights into the cooperative behaviour that characterizes a critical point, as well as
leading to fascinating mathematics. The two chief investigators have been at the forefront of this field for many years. Currently there are many notable exciting challenges they wish to address:
the re ....Solvable models on regular and random lattices in statistical mechanics and field theory. There are only a few solvable models in statistical mechanics and field theory, but those that are known give deep insights into the cooperative behaviour that characterizes a critical point, as well as
leading to fascinating mathematics. The two chief investigators have been at the forefront of this field for many years. Currently there are many notable exciting challenges they wish to address:
the relationship between Tutte's work on dichromatic polynomials and matrix models, the outstanding problem of calculating the order parameters of the chiral Potts model, and the eigenvalue spectra of the transfer matrices that occur in integrable models.
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Algebraic Structures in Mathematical Physics and Their Applications. Algebraic structures such as affine (super)algebras, quantised algebras and vertex operator algebras are among the most important discoveries in mathematics. They provide a universal common algebraic framework underlying applications in a wide range of physics (eg. statistical mechanics, string theory, condensed matter physics etc.) leading to a high level of research activity worldwide. The project harnessess the high level ....Algebraic Structures in Mathematical Physics and Their Applications. Algebraic structures such as affine (super)algebras, quantised algebras and vertex operator algebras are among the most important discoveries in mathematics. They provide a universal common algebraic framework underlying applications in a wide range of physics (eg. statistical mechanics, string theory, condensed matter physics etc.) leading to a high level of research activity worldwide. The project harnessess the high level of expertise in mathematical physics across Australia to focus on exciting new developments in the theory of these algebraic structures and their application to physics, thus ensuring Australia plays a leading role in this rapidly expanding field.Read moreRead less
Spin tunnelling transport and quantum effects in magnetic nanostructures. A new field of "spintronics" takes advantage of the spin of electrons and revolutionises electronics leading to quantum devices. By understanding the behaviour of electron spin in materials we can learn new fundamentals in solid-state physics that will lead to a new generation of electronic, optoelectronic and magneto-electronic devices. The aim of this project is to study the spin tunnelling transport and noise, and relat ....Spin tunnelling transport and quantum effects in magnetic nanostructures. A new field of "spintronics" takes advantage of the spin of electrons and revolutionises electronics leading to quantum devices. By understanding the behaviour of electron spin in materials we can learn new fundamentals in solid-state physics that will lead to a new generation of electronic, optoelectronic and magneto-electronic devices. The aim of this project is to study the spin tunnelling transport and noise, and related quantum effects in various magnetic nanostructures, such as ferromagnet/semiconductor/ferromagnet junctions, using quantum statistics approsches. The outcome of the project is of considerable relevance to the researches of nanostructure and quantum information/computation in Australia.Read moreRead less
Quantum decoherence: A game-theoretic perspective. Algorithms based on quantum computation have the ability to significantly speed up information processing compared to standard computers. The increase in computational power can have enormous impact on humankind and this project will help maintain Australia's position in the global forefront of this effort.This project focuses on the thoeretical foundations of quantum computation and complements the efforts of several groups in Australia collabo ....Quantum decoherence: A game-theoretic perspective. Algorithms based on quantum computation have the ability to significantly speed up information processing compared to standard computers. The increase in computational power can have enormous impact on humankind and this project will help maintain Australia's position in the global forefront of this effort.This project focuses on the thoeretical foundations of quantum computation and complements the efforts of several groups in Australia collaborating on the experimental design of quantum computers. The project will increase the fundamental understanding of how quantum information is processed in the presence of noise, which is necessary for the successful operation of quantum computers. Read moreRead less
Engineering Ultra-low Disorder Semiconductor Quantum Nanostructures. The multi-trillion dollar semiconductor industry drives the explosive growth in information technology that we have witnessed over the past 25 years. This proposal will provide a significant breakthrough by develop a new class of ultra low disorder 'quantum dot transistors' that will be of benefit to Australia's ongoing efforts in semiconductor nanotechnology and quantum information science, allowing us to play a role in the fu ....Engineering Ultra-low Disorder Semiconductor Quantum Nanostructures. The multi-trillion dollar semiconductor industry drives the explosive growth in information technology that we have witnessed over the past 25 years. This proposal will provide a significant breakthrough by develop a new class of ultra low disorder 'quantum dot transistors' that will be of benefit to Australia's ongoing efforts in semiconductor nanotechnology and quantum information science, allowing us to play a role in the future development of nanoscale and quantum electronics. This research program will bring together Australian researchers and students to work with leading international universities in the USA and New Zealand, and a leading Japanese industrial research facility - Nippon Telegraph and Telecommunications.Read moreRead less
Exact dynamics of the asymmetric exclusion process with boundaries. This project offers an opportunity for a postgraduate student to participate in world-class research. It further strengthens collaborative ties with the renowned department of theoretical physics at Oxford University. The outcomes of this project are expected to provide valuable fundamental information for any applied science in which transport plays a crucial role.