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Displacement-Noise-Free Gravitational-Wave Detection

Seiji Kawamura·Yanbei Chen
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Abstract

We present a new idea that allows us to detect gravitational waves without being disturbed by any kind of displacement noise, based on the fact that gravitational waves and test-mass motions affect the propagations of light differently. We demonstrate this idea by analyzing a simple toy model consisting three equally-separated objects on a line. By taking a certain combination of light travel times between these objects, we construct an observable free from the displacement of each object which has a reasonable sensitivity to gravitational waves.

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Seiji Kawamura, Yanbei Chen. 2005-02-22. Displacement-Noise-Free Gravitational-Wave Detection. https://doi.org/10.1103/physrevlett.93.211103

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