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Authors: Christian Corda

Date: 16 Jun 2007

Abstract: The gauge-invariance of the response of interferometers to gravitational waves (GWs) between the Tranverse-Traceless (TT) gauge, where, in general, computations on GWs are performed, and the gauge of the local observer, which is the gauge of a laboratory environment on Earth, is shown in its full angular and frequency dependences, while in previous works in the literature this gauge-invariance was shown only in the low frequencies approximation or in the simplest geometry of the interferometers. In the computation of the response functions in the gauge of the local observer, a common misconception about interferometers is also clarifed.

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