Resonant Spheres: Multifrequency Detectors of Gravitational Waves

We discuss the capabilities of spherical antenn\ae as single multifrequency detectors of gravitational waves. A first order theory allows us to evaluate the coupled spectrum and the resonators readouts when the first and the second quadrupole bare sphere frequencies are simultaneously selected for l...

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Bibliographic Details
Published in:arXiv.org 1999-11
Main Authors: M Angeles Serrano, Lobo, J Alberto
Format: Article
Language:English
Subjects:
Detectors
Gravitation theory
Gravitational waves
Quadrupoles
Tuning
Online Access:Get full text
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Summary:We discuss the capabilities of spherical antenn\ae as single multifrequency detectors of gravitational waves. A first order theory allows us to evaluate the coupled spectrum and the resonators readouts when the first and the second quadrupole bare sphere frequencies are simultaneously selected for layout tuning. We stress the existence of non-tuning influences in the second mode coupling causing draggs in the frequency splittings. These URF effects are relevant to a correct physical description of resonant spheres, still more if operating as multifrequency appliances like our PHCA proposal.
ISSN:2331-8422