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arXiv · 1601.04374

Interferometric Phase Estimation Though Quantum Filtering in Coherent States

John Gough
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Abstract

We derive the form of the quantum filter equation describing the continuous observation of the phase of a quantum system in an arm of an interferometer via non-demolition measurements when the statistics of an input field used for the indirect measurement are in a general coherent state. Both quadrature homodyne detection and photon-counting dection schemes are covered, and we solve the linearized filter for a specific application.

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John Gough. 2016-01-18. Interferometric Phase Estimation Though Quantum Filtering in Coherent States. https://arxiv.org/abs/1601.04374

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