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Explorations in the Foundations of Quantum Gravity. Despite almost a century of struggle, gravitation (as described by Einstein's general theory of relativity) remains divided from the principles of quantum theory (the framework in which our best theories of particle physics are couched). Bringing them together constitutes one of the most urgent problems of physics. By exploring the foundations of the problem, and the various proposed resolutions, from both historical and philosophical perspecti ....Explorations in the Foundations of Quantum Gravity. Despite almost a century of struggle, gravitation (as described by Einstein's general theory of relativity) remains divided from the principles of quantum theory (the framework in which our best theories of particle physics are couched). Bringing them together constitutes one of the most urgent problems of physics. By exploring the foundations of the problem, and the various proposed resolutions, from both historical and philosophical perspectives, this project aims both to shed new light on why it so stubbornly resists a solution and to assist in its solution. It will map out the specific features of the various approaches to quantum gravity with a view to offering researchers a helpful tool to navigate and compare their virtues and vices.Read moreRead less
Quantum enhancement of long baseline gravitational wave detectors. This project will design and construct a quantum optical system which when used in future long baseline gravitational wave detectors will enhance sensitivity across their detection frequency band, from 10 Hz to 10 kHz. This project will use this system on small scale optical sensors to prove the concept. In so doing, it will use squeezing to reduce quantum radiation pressure noise for the first time. This system will then be read ....Quantum enhancement of long baseline gravitational wave detectors. This project will design and construct a quantum optical system which when used in future long baseline gravitational wave detectors will enhance sensitivity across their detection frequency band, from 10 Hz to 10 kHz. This project will use this system on small scale optical sensors to prove the concept. In so doing, it will use squeezing to reduce quantum radiation pressure noise for the first time. This system will then be ready for deployment on an early upgrade of Advanced LIGO increasing the science output of this detector, turning gravitational wave detection into gravitational wave astronomy.Read moreRead less
Smart searches for continuous gravitational waves with advanced LIGO. This project aims to detect continuous gravitational waves from neutron stars, by using smart signal processing methods developed for engineering applications like mobile telephony. The first direct detection of Einstein's gravitational waves from two merging black holes by the Laser Interferometer Gravitational Wave Observatory in 2015 began a new era of human discovery. This project is expected to progress gravitational wave ....Smart searches for continuous gravitational waves with advanced LIGO. This project aims to detect continuous gravitational waves from neutron stars, by using smart signal processing methods developed for engineering applications like mobile telephony. The first direct detection of Einstein's gravitational waves from two merging black holes by the Laser Interferometer Gravitational Wave Observatory in 2015 began a new era of human discovery. This project is expected to progress gravitational wave science and Australia's role in it, and generate insights about the origin of neutron stars and the physics of bulk nuclear matter under extremes of gravity, density and magnetisation which cannot be replicated on Earth.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100121
Funder
Australian Research Council
Funding Amount
$720,000.00
Summary
Equipment for International Collaboration in Gravitational Wave Detection. Equipment for international collaboration in gravitational wave detection: This project will allow the Australian Consortium for Gravitational Astronomy to install optical equipment at its dedicated research facility, and to install data analysis pipelines on new iVEC Pawsey Centre GPU-enabled supercomputers. The equipment is required for research aimed at stabilising instabilities in the new international gravitational w ....Equipment for International Collaboration in Gravitational Wave Detection. Equipment for international collaboration in gravitational wave detection: This project will allow the Australian Consortium for Gravitational Astronomy to install optical equipment at its dedicated research facility, and to install data analysis pipelines on new iVEC Pawsey Centre GPU-enabled supercomputers. The equipment is required for research aimed at stabilising instabilities in the new international gravitational wave detectors currently being commissioned in the USA and Europe. Real time data from the new detectors will be analysed using innovative new techniques. Scientists across Australia will be able to rapidly localise potential gravitational wave sources to direct robotic telescope observations. This could enable the first detection of gravitational waves.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210101738
Funder
Australian Research Council
Funding Amount
$345,000.00
Summary
Discovering the most extreme pulsars with the next generation radio surveys. Finding radio pulsars has always been an extremely rewarding challenge and has led to Nobel Prize winning science. We are now entering a new era of radio astronomy and have new game changers, sensitive, wide-field-of-view imaging telescopes and massive compute resources, to search for extreme pulsars. Such pulsars, including pulsar-blackhole systems and sub-millisecond pulsars, cannot be found with traditional pulsar su ....Discovering the most extreme pulsars with the next generation radio surveys. Finding radio pulsars has always been an extremely rewarding challenge and has led to Nobel Prize winning science. We are now entering a new era of radio astronomy and have new game changers, sensitive, wide-field-of-view imaging telescopes and massive compute resources, to search for extreme pulsars. Such pulsars, including pulsar-blackhole systems and sub-millisecond pulsars, cannot be found with traditional pulsar surveys, but provide us unique laboratories to test gravity theories at ultra-strong gravitational fields and probe the state of matter at supra-nuclear densities. In this project I will leverage the Australian Square Kilometre Array Pathfinder (ASKAP) to discover the most extreme pulsars in deep all-sky continuum surveys.Read moreRead less
The diversity of core-collapse supernovae. This project aims to develop a comprehensive picture of the explosions of massive stars as core-collapse supernovae using high-end computer simulations. Such explosions come in many varieties and arise from different classes of progenitor stars. This project seeks to thoroughly understand this diversity. It endeavours to provide simulations of supernovae powered by magnetic fields, supernovae that produce black holes, supernovae in binary systems, and t ....The diversity of core-collapse supernovae. This project aims to develop a comprehensive picture of the explosions of massive stars as core-collapse supernovae using high-end computer simulations. Such explosions come in many varieties and arise from different classes of progenitor stars. This project seeks to thoroughly understand this diversity. It endeavours to provide simulations of supernovae powered by magnetic fields, supernovae that produce black holes, supernovae in binary systems, and the most energetic neutrino-driven supernovae. The project also aspires to better link numerical simulations, observations of supernovae and their remnants, and the nucleosynthesis fingerprints that supernovae have left in the chemical history record of galaxies.Read moreRead less
Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low ....Instrumentation for the era of gravitational wave science. This project aims to study noise sources that limit the low-frequency performance of gravitational wave antenna: thermal noise, quantum radiation pressure noise and Newtonian noise. Gravitational wave detection is a new way in which to observe our universe. Although detectors such as advanced LIGO (Laser Interferometer Gravitational-Wave Observatory) should detect gravitational waves, further sensitivity improvement, particularly at low frequencies, will be needed to provide event rates necessary for astronomy. Expected project outcomes will support the development of the first free mass interferometer to operate at 120K using silicon optics, a vital facility for the world community. Pushing the boundaries of measurement may also drive innovation in optical sensing with potential applications in defence, security and exploration.Read moreRead less
A networked robotic telescope array for coincident detection of transient phenomena in the optical, gravitational wave, neutrino and radio spectra. An international collaboration of scientists will employ a global network of rapid response robotic telescopes and detectors to study exotic transient phenomena in the early Universe. Potential spin-offs include the application of novel image analysis techniques for identifying and tracking dangerous space junk.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100212
Funder
Australian Research Council
Funding Amount
$160,000.00
Summary
Deep investigations of galaxies and pulsars. A new detector for the Parkes radio telescope will be made which will enable the use of new techniques for removing radio interference and, as a result, will allow researchers to detect fainter and more distant objects in the Universe than previously possible.
ARC Centre of Excellence for Gravitational Wave Discovery. This Centre aims to explore the historic first detections of gravitational waves to understand the extreme physics of black holes and warped spacetime, and inspire the next generation of Australian scientists and engineers. The next-generation gravity wave detectors will enable a thousand-fold increase in detection volume and result in the new gravitational wave discoveries, triggering a new era of gravitational wave astrophysics. Buil ....ARC Centre of Excellence for Gravitational Wave Discovery. This Centre aims to explore the historic first detections of gravitational waves to understand the extreme physics of black holes and warped spacetime, and inspire the next generation of Australian scientists and engineers. The next-generation gravity wave detectors will enable a thousand-fold increase in detection volume and result in the new gravitational wave discoveries, triggering a new era of gravitational wave astrophysics. Building on decades of Australian investment in gravitational wave and pulsar science, this Centre will coalesce research activities into a focussed national programme whose discoveries are intended to experimentally validate Einstein’s General Theory of Relativity and educate the public about the wonders of Einstein's Universe.Read moreRead less