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The Taiji mission for space-based gravitational wave (GW) detection employs laser interferometry to measure picometer-scale distance variations induced by GWs. The tilt-to-length (TTL) coupling noise in the inter-spacecraft interferometers,…

General Relativity and Quantum Cosmology · Physics 2025-09-25 Qiong Deng , Leiqiao Ye , Ke An , Yidi Fan , Ruihong Gao , Ziren Luo , Minghui Du , Pengcheng Wang , Peng Xu

As part of the Advanced LIGO+ (A+) project we have developed, produced, and characterised sensors and electronics to interrogate new optical suspensions. The central element is a displacement sensor with an integrated electromagnetic…

Instrumentation and Methods for Astrophysics · Physics 2023-01-25 S J Cooper , C M Mow-Lowry , D Hoyland , J Bryant , A Ubhi , J O'Dell , A Huddart , S Aston , A Vecchio

LISA (Laser Interferometer Space Antenna) is a joint mission of ESA and NASA which aims to be the first space-borne gravita- tional wave observatory. Due to the high complexity and technological challenges that LISA will face, ESA decided…

General Relativity and Quantum Cosmology · Physics 2012-02-14 Marc Diaz-Aguiló , Ignacio Mateos , Juan Ramos-Castro , Alberto Lobo , Enrique García-Berro

LISA Pathfinder satellite has been launched on 3th December 2015 toward the Sun-Earth first Lagrangian point (L1) where the LISA Technology Package (LTP), which is the main science payload, will be tested. With its cutting-edge technology,…

Instrumentation and Methods for Astrophysics · Physics 2016-04-29 Valerio Ferroni

Compact Michelson interferometers are well positioned to replace existing displacement sensors in the readout of seismometers and suspension systems, such as those used in contemporary gravitational-wave detectors. Here, we continue our…

Instrumentation and Detectors · Physics 2023-07-06 Jiri Smetana , Chiara Di Fronzo , Anthony Amorosi , Denis Martynov

This paper presents an adaptable, parallelizable method for subtracting linearly coupled noise from Advanced LIGO data. We explain the features developed to ensure that the process is robust enough to handle the variability present in…

Instrumentation and Methods for Astrophysics · Physics 2019-06-27 D. Davis , T. J. Massinger , A. P. Lundgren , J. C. Driggers , A. L. Urban , L. K. Nuttall

We present an interferometric sensor for investigating macroscopic quantum mechanics on a table-top scale. The sensor consists of pair of suspended optical cavities with a finesse in excess of 100,000 comprising 10 g fused-silica mirrors.…

Quantum Physics · Physics 2024-04-18 Jiri Smetana , Tianliang Yan , Vincent Boyer , Denis Martynov

The Laser Interferometer Space Antenna will detect gravitational waves with frequencies from 0.1 mHz to 1 Hz. This article provides a brief overview of LISA's science goals followed by a tutorial of the LISA measurement concept.

General Relativity and Quantum Cosmology · Physics 2010-03-25 Daniel A. Shaddock

The suspension noise in interferometric gravitational wave detectors is caused by losses at the top and the bottom attachments of each suspension fiber. We use the Fluctuation-Dissipation theorem to argue that by careful positioning of the…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Vladimir B. Braginsky , Yuri Levin , Sergey Vyatchanin

A phase-locking configuration for LISA is proposed that provides a significantly simpler mode of operation. The scheme provides one Sagnac signal readout inherently insensitive to laser frequency noise and optical bench motion for a…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Daniel A. Shaddock

The European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) are planning the Laser Interferometer Space Antenna (LISA) mission in order to detect GW. The need of accurate testing of free-fall and knowledge…

Space Physics · Physics 2011-10-14 Michele Armano

The space-based Laser Interferometer Space Antenna (LISA) will be able to observe the gravitational-wave signals from systems comprised of a massive black hole and a stellar-mass compact object. These systems are known as extreme-mass-ratio…

It is shown in the present Letter that the quantum noise due to high laser intensities in Michelson interferometer for gravitational waves detection can be reduced by sending squeezed vacuum states to the 'dark' port of the interferometer.…

General Relativity and Quantum Cosmology · Physics 2010-05-27 Yacob Ben-Aryeh

LISA Pathfinder (LPF) was a technology pioneering mission designed to test key technologies required for gravitational wave detection in space. In the low frequency regime (milli-Hertz and below), where space-based gravitational wave…

Data analysis for the proposed Laser Interferometer Space Antenna (LISA) will be complicated by the huge number of sources in the LISA band. Throughout much of the band, galactic white dwarf binaries (GWDBs) are sufficiently dense in…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Etienne Racine , Curt Cutler

High-precision pulsar timing observations are limited in their accuracy by the jitter noise that appears in the arrival time of pulses. Therefore, it is important to systematically characterise the amplitude of the jitter noise and its…

Recently, the configuration using atomic interferometers (AIs) had been suggested for the detection of gravitational waves. A new AI with some additional laser pulses for implementing large momentum transfer was also put forward, in order…

General Relativity and Quantum Cosmology · Physics 2015-10-20 Biao Tang , Baocheng Zhang , Lin Zhou , Jin Wang , Mingsheng Zhan

The space-based gravitational-wave observatory LISA, a NASA-ESA mission to be launched after 2012, will achieve its optimal sensitivity using Time Delay Interferometry (TDI), a LISA-specific technique needed to cancel the otherwise…

General Relativity and Quantum Cosmology · Physics 2014-11-17 Michele Vallisneri

We investigate the possible bounds which could be placed on alternative theories of gravity using gravitational wave detection from inspiralling compact binaries with the proposed LISA space interferometer. Specifically, we estimate lower…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Clifford M Will , Nicolas Yunes

The thermal noise is expected to be one of the main limiting factors on the sensitivity of interferometric gravitational-wave detectors like LIGO and VIRGO. Thermal fluctuations of internal modes of the interferometer's test masses and of…

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