Non-Gaussian states and entanglement distillation for Continuous Variable quantum information protocols. Amplifiers are important devices for electronic, computer as well as telecommunication industries. In the quantum world where light's corpuscular nature is prominent, amplification of a beam of light will have its associated noise penalty. This noise penalty sets limit to many quantum optical applications. This proposal aims to use a method based on conditional detection to realize a 'noisel ....Non-Gaussian states and entanglement distillation for Continuous Variable quantum information protocols. Amplifiers are important devices for electronic, computer as well as telecommunication industries. In the quantum world where light's corpuscular nature is prominent, amplification of a beam of light will have its associated noise penalty. This noise penalty sets limit to many quantum optical applications. This proposal aims to use a method based on conditional detection to realize a 'noiseless linear amplifier' that has no noise penalty probabilistically. Realization of this key device is central to extending the range of quantum communication, such as quantum cryptography. It also has applications in quantum computing and the potential to enhance sensitive measurements.Read moreRead less
Studies of near-field optical emission from waveguides and photonic crystals. Advanced optical materials and photonic devices require microscopic feature sizes close to the wavelength of light, challenging the limits of conventional fabrication and characterisation techniques (often developed in parallel). With extensive expertise in near-field optical modelling, Dr Rahmani will target specific problems associated with the characterisation of actual photonic devices. This will improve device de ....Studies of near-field optical emission from waveguides and photonic crystals. Advanced optical materials and photonic devices require microscopic feature sizes close to the wavelength of light, challenging the limits of conventional fabrication and characterisation techniques (often developed in parallel). With extensive expertise in near-field optical modelling, Dr Rahmani will target specific problems associated with the characterisation of actual photonic devices. This will improve device design and fabrication, enabling the development of more efficient, compact lasers and other devices. Economic and social benefits are expected from resulting improvements in optical processing, and the potential for new jobs and industries in this field.Read moreRead less
Quantum and atom optics. The applicant leads a highly successful group of young investigators, achieving internationally acclaimed work in quantum optics. Photonics technology is now at the brink of using the full advantage of quantum mechanics, through the concept of quantum information in optical and atomic systems. The experiments at the ANU group can provide new applications to the photonics industry, in particular in communication, sensing and microscopy. The proposed work is expected to ....Quantum and atom optics. The applicant leads a highly successful group of young investigators, achieving internationally acclaimed work in quantum optics. Photonics technology is now at the brink of using the full advantage of quantum mechanics, through the concept of quantum information in optical and atomic systems. The experiments at the ANU group can provide new applications to the photonics industry, in particular in communication, sensing and microscopy. The proposed work is expected to create fundamental research and generate future commercial opportunities in an area where Australian science is at the leading edge of research and the international demand is rising.Read moreRead less
Advances in Quantum Imaging and Quantum Memory using Squeezed Light and Entanglement. Maintaining a leading position in fundamental research will always result in directly related technologies or spin-offs. Being the first to demonstrate a Quantum Memory and spatial entanglement will guarantee Australia a leading role in two promising quantum research fields. High sensitive position measurements as used in Atomic Force Microscopy can directly benefit from developments of this project. The demons ....Advances in Quantum Imaging and Quantum Memory using Squeezed Light and Entanglement. Maintaining a leading position in fundamental research will always result in directly related technologies or spin-offs. Being the first to demonstrate a Quantum Memory and spatial entanglement will guarantee Australia a leading role in two promising quantum research fields. High sensitive position measurements as used in Atomic Force Microscopy can directly benefit from developments of this project. The demonstration of a Quantum Memory for continuous variables will boost the progress in the realisation of a future quantum network. The participation at a high level in the Quantum research community will bring worldwide recognition to Australia.Read moreRead less
The Standard Quantum Limit and Beyond. The uncertainty principle sets limits on the sensitivity to which any measurement can be made - the standard quantum limit (SQL). This limit is yet to be reached on a macroscopic object and, until recently, was regarded as unsurpassable. Due to the rapid improvement in optical measurement technology developed for Gravitational Wave Astronomy, there is now the prospect of experimentally reaching the standard quantum limit within this decade. This project wi ....The Standard Quantum Limit and Beyond. The uncertainty principle sets limits on the sensitivity to which any measurement can be made - the standard quantum limit (SQL). This limit is yet to be reached on a macroscopic object and, until recently, was regarded as unsurpassable. Due to the rapid improvement in optical measurement technology developed for Gravitational Wave Astronomy, there is now the prospect of experimentally reaching the standard quantum limit within this decade. This project will harness much of this technology to achieve the SQL. It will also experimentally develop new quantum measurement techniques to surpass this limit.Read moreRead less
Continuous Variable Quantum Information Experiments. Quantum information is a research field that exploits the richness of modern quantum theory for measurement, communication and information processing. This fellowship aims at using quantum optics to demonstrate a range of exciting communication and metrological applications that are otherwise impossible with classical physics. Example applications are: Quantum teleportation - a method for the noiseless transport of quantum information; Qua ....Continuous Variable Quantum Information Experiments. Quantum information is a research field that exploits the richness of modern quantum theory for measurement, communication and information processing. This fellowship aims at using quantum optics to demonstrate a range of exciting communication and metrological applications that are otherwise impossible with classical physics. Example applications are: Quantum teleportation - a method for the noiseless transport of quantum information; Quantum cryptography - a crypto-communication system that has absolute security and; Nano-imaging - optical imaging techniques that offer resolution beyond the diffraction limit. These "quantum technology" are predicted to revolutionize information and communication technologies. Read moreRead less
Quantum repeater technologies for continuous variable. It is often said that quantum mechanics will revolutionise 21st century technologies in the same way as Maxwell's electromagnetic theory did in the 20th century. Amongst these technologies, quantum information, and more precisely quantum communication techniques are expected to revolutionise telecommunication systems, both in terms of security and capabilities. A near term application of quantum communication, that is already semi-commercial ....Quantum repeater technologies for continuous variable. It is often said that quantum mechanics will revolutionise 21st century technologies in the same way as Maxwell's electromagnetic theory did in the 20th century. Amongst these technologies, quantum information, and more precisely quantum communication techniques are expected to revolutionise telecommunication systems, both in terms of security and capabilities. A near term application of quantum communication, that is already semi-commercial, is Quantum Key Distribution, a novel cryptographic method whose absolute security is ensured by the laws of physics. The range of transmission of these quantum communication protocols, however, is currently limited, a limitation that this proposal aims at alleviating. Read moreRead less
Quantum Photonics with continuous laser beams. Quantum information and communication is a new paradigm in information technology which utilises quantum physics to improve current limitations in speed, security and fidelity of information transmission and processing, extending the present Electronics and Photonics devices. Future applications will include teleportation, cryptography and ultimately quantum computation. We propose to investigate these applications using continuous (CW) laser beams ....Quantum Photonics with continuous laser beams. Quantum information and communication is a new paradigm in information technology which utilises quantum physics to improve current limitations in speed, security and fidelity of information transmission and processing, extending the present Electronics and Photonics devices. Future applications will include teleportation, cryptography and ultimately quantum computation. We propose to investigate these applications using continuous (CW) laser beams and the Einstein-Podolsky-Rosen (EPR) quantum entanglement, which is generated via a pair of optical parametric oscillators. The advantages of CW over the established single photon technology is better detection efficiency, wider data bandwidth and compatibility with existing Photonics technology.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668398
Funder
Australian Research Council
Funding Amount
$177,900.00
Summary
Advanced Microwave Facility for Quantum-Atom Optics. Atoms can be controlled using light in visible and infra-red regions, as well as electromagnetic waves of longer wavelength in the microwave (MW) and radiofrequency (RF) part of the spectrum. We presently use optical radiation to control atoms at the quantum level where they can behave like waves and can interact with light to store and manipulate information. The MW and RF facility will extend our abilities and enable more complete control of ....Advanced Microwave Facility for Quantum-Atom Optics. Atoms can be controlled using light in visible and infra-red regions, as well as electromagnetic waves of longer wavelength in the microwave (MW) and radiofrequency (RF) part of the spectrum. We presently use optical radiation to control atoms at the quantum level where they can behave like waves and can interact with light to store and manipulate information. The MW and RF facility will extend our abilities and enable more complete control of the atoms, which will help us develop the first generation quantum technology. This will enable the creation of quantum devices such as atom lasers, atom interferometers and quantum information networks for communication and ultra-sensitive measurement applications.Read moreRead less
High-average-power all-solid-state lasers based on new crystalline Raman materials. We have recently made significant advances in development of all-solid-state intracavity Raman lasers generating multiwatt average powers in the near infrared and (by frequency doubling) visible spectrum, with important applications in biomedicine and remote sensing. A new generation of Raman crystals, especially tungstates, offer superior optical, mechanical and thermal properties, promising high Raman gains and ....High-average-power all-solid-state lasers based on new crystalline Raman materials. We have recently made significant advances in development of all-solid-state intracavity Raman lasers generating multiwatt average powers in the near infrared and (by frequency doubling) visible spectrum, with important applications in biomedicine and remote sensing. A new generation of Raman crystals, especially tungstates, offer superior optical, mechanical and thermal properties, promising high Raman gains and choice of Stokes frequency shift. The project will investigate a range of key issues for these materials including control of the Stokes wavelength, associated polarisation control, and pump-resonator configurations giving maximum Raman laser power and efficiency. The project will lead to state-of-the-art source technology with outstanding prospects for commercialisation and practical application.Read moreRead less