Coherent interaction of a monochromatic gravitational wave with both elastic bodies and electromagnetic circuits
arXiv:gr-qc/9601024 · doi:10.1103/PhysRevD.59.024001
Abstract
The interaction of a gravitational wave with a system made of an RLC circuit forming one end of a mechanical harmonic oscillator is investigated. We show that, in some configurations, the coherent interaction of the wave with both the mechanical oscillator and the RLC circuit gives rise to a mechanical quality factor increase of the electromagnetic signal. When this system is used as an amplifier of gravitational periodic signals in the frequency range 50-1000 Hz, at ultracryogenic temperatures and for sufficiently long integration times (up to 4 months), a sensitivity of 10^(-24)-10^(-27) on the amplitude of the metric could be achieved when thermal noise, shot noise and amplifier back--action are considered.
RevTeX, 8 pages plus 2 postscript figures; widely revised text; noise analisys enhanced. Approved for publication in Phys. Rev. D