Abstract
A common misconception about laser interferometric detectors of gravitational waves purports that, because the wavelength of laser light and the length of an interferometer’s arm are both stretched by a gravitational wave, no effect should be visible, invoking an analogy with cosmological redshift in an expanding universe. The issue is clarified with the help of a direct calculation.
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Faraoni, V. A common misconception about LIGO detectors of gravitational waves. Gen Relativ Gravit 39, 677–684 (2007). https://doi.org/10.1007/s10714-007-0415-5
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DOI: https://doi.org/10.1007/s10714-007-0415-5