Interferometric Phase Estimation Though Quantum Filtering in Coherent States
Quantum Physics
2016-01-19 v1
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.
Cite
@article{arxiv.1601.04374,
title = {Interferometric Phase Estimation Though Quantum Filtering in Coherent States},
author = {John Gough},
journal= {arXiv preprint arXiv:1601.04374},
year = {2016}
}
Comments
8 pages, 1 figure