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The displacement-noise-free interferometer (DFI) is designed to eliminate all displacement-induced noise while retaining sensitivity to gravitational wave (GW) signals. Ground-based DFIs suffer from physical arm-length limitations,…

For further gravitational wave (GW) detections, it is significant to invent a technique to reduce all kinds of mirror displacement noise dominant at low frequencies for ground-based detectors. The neutron displacement-noise-free…

The displacement- and frequency-noise-free interferometer (DFI) is a multiple laser interferometer array for gravitational wave detection free from both the displacement noise of optics and laser frequency noise. So far, partial…

General Relativity and Quantum Cosmology · Physics 2009-10-29 K. Kokeyama , S. Sato , A. Nishizawa , S. Kawamura , Y. Chen , A. Sugamoto

The detection of low-frequency gravitational waves on Earth requires the reduction of displacement noise, which dominates the low-frequency band. One method to cancel test mass displacement noise is a neutron displacement-noise-free…

The improvement of sensitivity to gravitational waves (GWs) at lower frequencies is still challenging on account of displacement noise. One of the solutions is the neutron displacement-noise-free interferometer (DFI). We focus on a…

Current laser-interferometric gravitational wave detectors suffer from a fundamental limit to their precision due to the displacement noise of optical elements contributed by various sources. Several schemes for Displacement-Noise Free…

Quantum Physics · Physics 2024-01-17 Tuvia Gefen , Rajashik Tarafder , Rana X. Adhikari , Yanbei Chen

We have demonstrated displacement- and frequency-noise free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bi-directional Mach-Zehnder interferometers (MZI). This partial implementation,…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Shuichi Sato , Seiji Kawamura , Keiko Kokeyama , Robert L. Ward , Yanbei Chen , Archana Pai , Kentaro Somiya

Motivated by a recently-invented scheme of displacement-noise-free gravitational-wave detection, we demonstrate the existence of gravitational-wave detection schemes insusceptible to both displacement and timing (laser) noises, and are thus…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Yanbei Chen , Seiji Kawamura

We propose a class of displacement- and laser-noise free gravitational-wave-interferometer configurations, which does not sense non-geodesic mirror motions and laser noises, but provides non-vanishing gravitational-wave signal. Our…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Yanbei Chen , Archana Pai , Kentaro Somiya , Seiji Kawamura , Shuichi Sato , Keiko Kokeyama , Robert L. Ward

In this paper we demonstrate that a double Michelson interferometer with Fabry-Perot cavities in its arms is able to perform laser- and displacement-noise-free gravitational-wave (GW) detection if certain model assumptions are met. Assuming…

General Relativity and Quantum Cosmology · Physics 2009-04-22 Sergey P. Tarabrin , Sergey P. Vyatchanin

This paper reports an experimental demonstration of partial displacement noise free laser interferometry in the gravitational wave detection band. The used detuned Fabry-Perot cavity allows the isolation of the mimicked gravitational wave…

General Relativity and Quantum Cosmology · Physics 2010-05-12 Antonio Perreca , Simon Chelkowski , Stefan Hild , Andreas Freise

We present an experimental opportunity for the future to measure possible violations to Newton's 1/r^2 law in the 0.1-10 meter range using Dynamic gravity Field Generators (DFG) and taking advantage of the exceptional sensitivity of modern…

General Relativity and Quantum Cosmology · Physics 2015-05-30 Peter Raffai , Gabor Szeifert , Luca Matone , Yoichi Aso , Imre Bartos , Zsuzsa Marka , Fulvio Ricci , Szabolcs Marka

Interferometers with kilometer-scale arms have been built for gravitational-wave detections on the ground; ones with much longer arms are being planned for space-based detection. One fundamental motivation for long baseline interferometry…

General Relativity and Quantum Cosmology · Physics 2020-07-06 Kentaro Somiya , Keisuke Goda , Yanbei Chen , Eugeniy E. Mikhailov

We demonstrate that speedmeter, based on double pumped resonant Sagnac interferometer, can be used as a displacement noise free gravitational-wave (GW) detector. The displacement noise of cavity mirrors can be completely excluded through a…

General Relativity and Quantum Cosmology · Physics 2008-08-27 Sergey P. Vyatchanin

Perfect single-crystal neutron interferometers are adversely sensitive to environmental disturbances, particularly mechanical vibrations. The sensitivity to vibrations results from the slow velocity of thermal neutrons and the long…

Quantum Physics · Physics 2016-02-19 Dmitry A. Pushin , Muhammad Arif , David G. Cory

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

We propose a new detection strategy for gravitational waves (GWs) below few Hertz based on a correlated array of atom interferometers (AIs). Our proposal allows to reduce the Newtonian Noise (NN) which limits all ground based GW detectors…

Atomic Physics · Physics 2016-01-20 W. Chaibi , R. Geiger , B. Canuel , A. Bertoldi , A. Landragin , P. Bouyer

The sensitivity of an atom gradiometer aiming to detect gravitational waves (GW) is impacted by fluctuations of Earth's gravity field also called Newtonian Noise (NN). Sensor arrays have proved to be a promising technique for NN reduction.…

General Relativity and Quantum Cosmology · Physics 2025-06-04 Q. Cojean Palassoé , A. Bertoldi , A. Landragin , B. Canuel

Quantum fluctuation of light limits the sensitivity of advanced laser interferometric gravitational-wave detectors. It is one of the principal obstacles on the way towards the next-generation gravitational-wave observatories. The envisioned…

General Relativity and Quantum Cosmology · Physics 2019-05-08 Stefan L. Danilishin , Farid Ya. Khalili , Haixing Miao

Direct observations of gravitational waves at frequencies below 10 Hz will play crucial roles for fully exploiting the potential of gravitational wave astronomy. One approach to pursue this direction is the utilization of laser…

Instrumentation and Methods for Astrophysics · Physics 2024-04-03 Kiwamu Izumi , Masa-Katsu Fujimoto
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