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Title: Wideband Dual Sphere Detector of Gravitational Waves

Abstract

We present the concept of a sensitive and broadband resonant mass gravitational wave detector. A massive sphere is suspended inside a second hollow one. Short, high-finesse Fabry-Perot optical cavities read out the differential displacements of the two spheres as their quadrupole modes are excited. At cryogenic temperatures, one approaches the standard quantum limit for broadband operation with reasonable choices for the cavity finesses and the intracavity light power. A molybdenum detector, of overall size of 2 m, would reach spectral strain sensitivities of 2 x 10{sup -23} Hz{sup -1/2} between 1000 and 3000 Hz.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40277044
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 87; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevLett.87.031101; Othernumber: PRLTAO000087000003031101000001; 018129PRL; PBD: 16 Jul 2001; Journal ID: ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITIES; CRYOGENICS; GRAVITATIONAL WAVE DETECTORS; GRAVITATIONAL WAVES; MOLYBDENUM; QUADRUPOLES; STRAINS

Citation Formats

Cerdonio, M, Conti, L, Lobo, J A, Ortolan, A, Taffarello, L, and Zendri, J P. Wideband Dual Sphere Detector of Gravitational Waves. United States: N. p., 2001. Web. doi:10.1103/PhysRevLett.87.031101.
Cerdonio, M, Conti, L, Lobo, J A, Ortolan, A, Taffarello, L, & Zendri, J P. Wideband Dual Sphere Detector of Gravitational Waves. United States. https://doi.org/10.1103/PhysRevLett.87.031101
Cerdonio, M, Conti, L, Lobo, J A, Ortolan, A, Taffarello, L, and Zendri, J P. 2001. "Wideband Dual Sphere Detector of Gravitational Waves". United States. https://doi.org/10.1103/PhysRevLett.87.031101.
@article{osti_40277044,
title = {Wideband Dual Sphere Detector of Gravitational Waves},
author = {Cerdonio, M and Conti, L and Lobo, J A and Ortolan, A and Taffarello, L and Zendri, J P},
abstractNote = {We present the concept of a sensitive and broadband resonant mass gravitational wave detector. A massive sphere is suspended inside a second hollow one. Short, high-finesse Fabry-Perot optical cavities read out the differential displacements of the two spheres as their quadrupole modes are excited. At cryogenic temperatures, one approaches the standard quantum limit for broadband operation with reasonable choices for the cavity finesses and the intracavity light power. A molybdenum detector, of overall size of 2 m, would reach spectral strain sensitivities of 2 x 10{sup -23} Hz{sup -1/2} between 1000 and 3000 Hz.},
doi = {10.1103/PhysRevLett.87.031101},
url = {https://www.osti.gov/biblio/40277044}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 3,
volume = 87,
place = {United States},
year = {2001},
month = {7}
}