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On the response of gravitational antennas to dilatonic waves

M. Gasperini
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Abstract

It is pointed out that the coupling of macroscopic test masses to the gravi-dilaton background of string theory is non geodesic, in general, and cannot be parametrized by a Brans-Dicke model of scalar-tensor gravity. The response of gravitational antennas to dilatonic waves should be analyzed through a generalized equation of geodesic deviation, taking into account the possible direct coupling of the background to the (composition-dependent) dilatonic charge of the antenna.

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M. Gasperini. 1999-10-06. On the response of gravitational antennas to dilatonic waves. https://doi.org/10.1016/s0370-2693(99)01309-x

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