Silicon Photonic Platform for Quantum Encryption and Communications. The integrity of a secure communications link can mean the difference between life and death in a defence environment. In the civilian arena, the security of electronic financial transactions is also critical to guard against 'cyber' theft. Encryption of data using unique quantum 'noise' as a key has been proposed as an exceptionally strong approach. Attempts to intercept the key during transmission can easily be detected.
....Silicon Photonic Platform for Quantum Encryption and Communications. The integrity of a secure communications link can mean the difference between life and death in a defence environment. In the civilian arena, the security of electronic financial transactions is also critical to guard against 'cyber' theft. Encryption of data using unique quantum 'noise' as a key has been proposed as an exceptionally strong approach. Attempts to intercept the key during transmission can easily be detected.
Quantum key transmission has been demonstrated but requires impractically expensive, bulky and exotic equipment. This project will explore low-cost, silicon chip based quantum key transfer modules. Our aim is to render quantum encryption as simple as adding an expansion card to a standard computer or portable device.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100069
Funder
Australian Research Council
Funding Amount
$370,000.00
Summary
Ultra-low temperature facility for optical experiments. Ultra-low temperature facility for optical experiments:
The project aims to establish a state-of-the-art facility to conduct optics and photonics experiments at ultra-low temperatures, by integrating an optical-access cryogen-free dilution refrigerator into an optics laboratory. Near absolute zero temperature, complex materials and engineered nanoscale devices exhibit striking quantum mechanical behaviour. Experimental access to photonics ....Ultra-low temperature facility for optical experiments. Ultra-low temperature facility for optical experiments:
The project aims to establish a state-of-the-art facility to conduct optics and photonics experiments at ultra-low temperatures, by integrating an optical-access cryogen-free dilution refrigerator into an optics laboratory. Near absolute zero temperature, complex materials and engineered nanoscale devices exhibit striking quantum mechanical behaviour. Experimental access to photonics at millikelvin temperatures would enable a coherent quantum-mechanical interface between spins, charges, phonons and photons. This unique facility may help in designing the next generation of information, communication and metrology devices, such as quantum computers, single-photon sources and detectors, and nanoscale quantum-enhanced sensors.Read moreRead less
Optically induced spin polarisation: the role of electron-vibration interactions. A defect in diamond has applications as a microscopic probe of magnetic fields, as a fluorescence probe of biological systems and for quantum information processing. These capabilities are to be enhanced by a thorough investigation of the intrinsic properties of the defect centre.
Understanding nature with twisted photons. Technological and scientific advances occur due to new tools being used to explore nature. This project will give Australia the world leadership in the study of nature through the use of twisted photons. This new tool may open the door to answer fundamental questions about the universe.
Laser threshold sensing. This project aims to create a new class of room-temperature ultra-sensitive magnetometers based on laser threshold magnetometry. By using nitrogen-vacancy colour centres in diamond, these magnetometers will demonstrate at least femto-Tesla per root Hertz sensitivity, and could replace SQUID magnetometers. This project aims to develop its theoretical concept into a platform for advanced sensing with applications in magneto-encephalography, nerve sensing, MRI imaging, mini ....Laser threshold sensing. This project aims to create a new class of room-temperature ultra-sensitive magnetometers based on laser threshold magnetometry. By using nitrogen-vacancy colour centres in diamond, these magnetometers will demonstrate at least femto-Tesla per root Hertz sensitivity, and could replace SQUID magnetometers. This project aims to develop its theoretical concept into a platform for advanced sensing with applications in magneto-encephalography, nerve sensing, MRI imaging, mining and aircraft guidance systems.Read moreRead less
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