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arXiv · 2512.08638

Strain sensitivity enhancement in a Grover-Michelson interferometer

Anthony D. Manni·Christopher R. Schwarze·David S. Simon·Abdoulaye Ndao·Alexander V. Sergienko
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Abstract

The Michelson interferometric phase detection resolution can be enhanced by replacing conventional beam splitters with novel directionally unbiased four-port scatterers, such as Grover coins. We present a quantitative analysis of the noise-to-signal ratio of sideband frequencies generated by gravitational wave-induced phase perturbations in a Grover-Michelson interferometer (GMI). We discuss the principles of GMI signal enhancement and demonstrate how combining this configuration with additional light-recycling arrangements further enhances the performance.

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Anthony D. Manni, Christopher R. Schwarze, David S. Simon, Abdoulaye Ndao, Alexander V. Sergienko. 2025-12-09. Strain sensitivity enhancement in a Grover-Michelson interferometer. https://doi.org/10.1103/8h71-w8tt

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