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Machine learning has become an effective tool for processing the extensive data sets produced by large physics experiments. Gravitational-wave detectors are now listening to the universe with quantum-enhanced sensitivity, accomplished with…

Instrumentation and Methods for Astrophysics · Physics 2023-11-07 Chris Whittle , Ge Yang , Matthew Evans , Lisa Barsotti

To investigate the possibility that intrinsic gravitational decoherence can be theoretically demonstrated within canonical quantum gravity, we develop a model of a self-gravitating interferometer. We search for evidence in the resulting…

General Relativity and Quantum Cosmology · Physics 2014-09-05 Cisco Gooding , William G. Unruh

The first direct observation of gravitational waves' action upon matter has recently been reported by the BICEP2 experiment. Advanced ground-based gravitational-wave detectors are being installed. They will soon be commissioned, and then…

General Relativity and Quantum Cosmology · Physics 2014-05-06 Scott A. Hughes

Gravitational information is incorporated into an atomic state by correlation of the internal and external degrees of freedom of the atom, in the present study of the atomic interferometer. Thus it is difficult to transfer information by…

Quantum Physics · Physics 2013-08-23 Baocheng Zhang , Qing-yu Cai , Ming-sheng Zhan

Advanced gravitational-wave detectors are limited by quantum noise in their most sensitive frequency band. Quantum noise suppression techniques, such as the application of the quantum squeezed state of light, have been actively studied in…

General Relativity and Quantum Cosmology · Physics 2020-07-01 Teng Zhang , Denis Martynov , Andreas Freise , Haixing Miao

The quantum locking technique, which uses additional short low-loss sub-cavities, is effective in reducing quantum noise in space gravitational wave antenna DECIGO. However, the quantum noise of the main interferometer depends on the…

The topic of quantum noise has become extremely timely due to the rise of quantum information physics and the resulting interchange of ideas between the condensed matter and AMO/quantum optics communities. This review gives a pedagogical…

Mesoscale and Nanoscale Physics · Physics 2010-04-16 A. A. Clerk , M. H. Devoret , S. M. Girvin , F. Marquardt , R. J. Schoelkopf

We present an approach to experimentally evaluate gravity gradient noise, a potentially limiting noise source in advanced interferometric gravitational wave (GW) detectors. In addition, the method can be used to provide sub-percent…

General Relativity and Quantum Cosmology · Physics 2008-11-26 L. Matone , P. Raffai , S. Marka , R. Grossman , P. Kalmus , Z. Marka , J. Rollins , V. Sannibale

Seismic noise will be the dominant source of noise at low frequencies for ground based gravitational wave detectors, such as LIGO now under construction. Future interferometers installed at LIGO plan to use at least a double pendulum…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Mark A. Beilby , Gabriela Gonzalez , Michelle Duffy , Amber Stuver , Jennifer Poker

We show that a recent claim that matter wave interferometers have a much higher sensitivity than laser interferometers for a comparable physical setup is unfounded. We point out where the mistake in the earlier analysis is made. We also…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Albert Roura , Dieter R. Brill , B. L. Hu , Charles W. Misner , William D. Phillips

Squeezed states of light have been recently used to improve the sensitivity of laser interferometric gravitational-wave detectors beyond the quantum limit. To completely establish quantum engineering as a realistic option for the next…

In this overview we discuss the prospects for a first detection of an isotropic gravitational wave background with earth-based interferometric detectors. Furthermore, we focus on how correlated noise sources could endanger such a detection…

General Relativity and Quantum Cosmology · Physics 2023-05-05 Kamiel Janssens

We propose a new technique for detecting gravitational waves using Quantum Entangled STate (QUEST) technology. Gravitational waves reduce the non-locality of correlated quanta controlled by Bell's inequalities, distorting quantum encryption…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Fabrizio Tamburini , Bruce A. Bassett , Carlo Ungarelli

Angular fluctuations of suspended mirrors in gravitational wave interferometers are a source of noise both for the locking and the operation of the detectors. We describe here some of the sources of these fluctuations and methods for the…

General Relativity and Quantum Cosmology · Physics 2017-08-23 Gabriela Gonzalez

The existence of dark matter is supported by multiple astrophysical observations, yet its particle nature remains unknown. The development of gravitational wave astronomy, especially with future space-based detectors such as LISA, provides…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-10 Yuezhe Chen , Pan-Pan Wang , Bo Wang , Rui Luo , Cheng-Gang Shao

This document presents a ray-optics analysis of the response of a two-element radio interferometer to the presence of a plane gravitational wave. A general expression for the differential phase observed between the two receiving stations as…

Astrophysics · Physics 2016-08-30 Kipp Cannon

Fluctuations in the local Newtonian gravitational field present a limit to high precision measurements, including searches for gravitational waves using laser interferometers. In this work, we present a model of this perturbing…

General Relativity and Quantum Cosmology · Physics 2013-05-21 Jennifer C. Driggers , Jan Harms , Rana X. Adhikari

We study the thermal-noise spectrum of multi-loop pendulum suspensions for test masses in interferometric gravitational-wave detectors. The dependence of the thermal noise on suspension parameters and on properties of the wire material is…

Instrumentation and Detectors · Physics 2007-05-23 Constantin Brif

We explore new regimes of laser interferometric gravitational-wave detectors with multiple optical carriers which allow to reduce the quantum noise of these detectors. In particular, we show that using two carriers with the opposite…

General Relativity and Quantum Cosmology · Physics 2015-03-05 Mikhail Korobko , Nikita Voronchev , Haixing Miao , Farid Ya. Khalili