Fangyu+Li

Both the quintessential inflationary models (QIM) and some string cosmology scenarios predict high energy density regions of relic gravitons in the microwave band (108-1010Hz). There exist corresponding root mean square values of metric perturbations of the relic gravitational waves (GWs) in the region of approximately //h//~10-30-10-32. A electromagnetic detecting system for these GWs is described in which we measure the perturbative photon flux (PPF) or signal generated by such high-frequency relic GWs (HFRGWs) via a coupling system of fractal membranes and a Gaussian beam (GB) passing through a static magnetic field. It is found that under the synchro-resonance condition, the HFRGWs may produce the PPFs of ~102s-1 to 103s-1 in a surface of 10-2m2 area at the waist of the GB. The PPF reflected or transmitted by the fractal membranes exhibits a very small decay rate compared with the much stronger background photon flux. We also discuss the system’s noise issues, selection capability and directional sensitivity for the resonant components from the stochastic relic GW background. This scheme might provide a new means of detecting HFRGWs.
 * Selection and Detection of High-Frequency Relic Gravitational Waves **
 * Fangyu Li1, Robert M. L. Baker, Jr.2 and Zhenya Chen1 **
 * 1. **** Department of Physics, Chongqing University, Chongqing 400044, P. R. China **
 * 2 **** . **** GRAWAVE® LLC, 8123 Tuscany Avenue, Playa del Rey, California 90293, USA **