Electronic Enhancements in the Detection of Gravitational Waves by Metallic Antennae

Details Electronic Enhancements in the Detection of Gravitational Waves by Metallic Antennae Electronic Enhancements in the Detection of Gravitational Waves by Metallic Antennae

2003-02-07

arxiv.org/abs/gr-qc/0302024v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, one figure

Scientific paper

For mechanical Weber gravitational wave antennae, it is thought that gravity waves are weakly converted into acoustic vibrations. Acoustic vibrations in metals (such as Aluminum) are experimentally known to be attenuated by the creation of electron-hole pairs described via the electronic viscosity. These final state electronic excitations give rise to gravitational wave absorption cross sections which are considerably larger (by four orders of magnitude) than those in previous theories which have not explicitly considered electronic excitations.

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