SPACE, TIME AND FUNDAMENTAL INTERACTIONS

ON THE DETECTION OF HIGH-FREQUENCY RELIC GRAVITATIONAL WAVES

Manucharyan G.D., Fomin I.V., Gladyshev V.O., Litvinov D.A.

The specificity of the spectrum of relic gravitational waves formed at the inflationary and post-inflationary stages of the evolution of the early universe is considered for cosmological models based on modified theories of gravity and Einstein gravity. The possibility of detecting high-frequency relic gravitational waves by using the process of converting gravitons into photons in a constant and alternating magnetic field is considered. The sensitivity of detectors of this type is compared with the sensitivity of other existing and prospective detectors of high-frequency gravitational waves. Based on the analysis of the sensitivity assessment of various types of high-frequency gravitational wave detectors, a conclusion is made about the prospects for direct verification of cosmological inflation models using gravitational-wave antennas.