SCALAR GRAVITATIONAL WAVES FROM SCALAR-TENSOR GRAVITY: PRODUCTION AND RESPONSE OF INTERFEROMETERS

摘要: Scalar-tensor gravity admits the existence of scalar modes gravitational waves (SGWs). The mechanism production and response interferometers to these components can be studied in three different gauges massless case: transverse-traceless (TT) gauge, so-called "Shibata, Nakao Nakamura" (SNN) local Lorentz gauge. SGWs is invariant gauges. Our work generalizes previous results which, study coupling between SGWs, started from assumption that wavelength SGW much larger than distance test masses. Furthermore, considering situations motivated by string-dilaton gravity, effect a small mass term on interferometer taken into account. In this case (massive SGW), we have longitudinal effect, an arm interferometer, which aligned wave propagation direction computed. value function for non-relativistic massive at high frequencies very high: fact opens doors interesting possibility detection "massive" part signal, if advanced projects will achieve sensitivities. Finally, using geometry system, generalized (like VIRGO or LIGO) studied. total frequency incoming arbitrary directions