Effects of the reservoir squeezing on the precision of parameter estimation

Shao-xiong Wu; Chang-shui Yu; He-shan Song

doi:10.1016/j.physleta.2015.03.002

Effects of the reservoir squeezing on the precision of parameter estimation

Quantum Physics 2015-09-23 v1

Authors: Shao-xiong Wu , Chang-shui Yu , He-shan Song

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Abstract

The effects of reservoir squeezing on the precision of parameter estimation are investigated analytically based on non-perturbation procedures. The exact analytic quantum Fisher information (QFI) is obtained. It is shown that the QFI depends on the estimated parameter and its decay could be reduced by the squeezed reservoir compared with thermal (vacuum) reservoir, in particular, if the squeezing phase matching is satisfied.

Keywords

parameter estimation reservoir squeezing quantum Fisher information squeezed reservoir non-perturbation procedure squeezing phase matching

Cite

@article{arxiv.1509.03955,
  title  = {Effects of the reservoir squeezing on the precision of parameter estimation},
  author = {Shao-xiong Wu and Chang-shui Yu and He-shan Song},
  journal= {arXiv preprint arXiv:1509.03955},
  year   = {2015}
}

Comments

6 pages, 6 figures

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