Wideband dual sphere detector of gravitational waves.
Phys Rev Lett
; 87(3): 031101, 2001 Jul 16.
Article
em En
| MEDLINE
| ID: mdl-11461547
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 2x10(-23) Hz(-1/2) between 1000 and 3000 Hz.
Buscar no Google
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article