Sensitivity of quantum-enhanced interferometers

Dariya Salykina; Farid Ya. Khalili

Sensitivity of quantum-enhanced interferometers

Quantum Physics 2022-12-16 v1

Authors: Dariya Salykina , Farid Ya. Khalili

Abstract

We consider various configuration of quantum-enhanced interferometers, both linear (SU(2)) and non-linear (SU(1,1)) ones, as well as hybrid SU(2)/SU(1,1) schemes. Using the unified modular approach, based on the Quantum Cramer-Rao bound, we show that in all practical cases, their sensitivity is limited by the same equations (95) or (97) which first appeared in the pioneering work by C.Caves [Phys.Rev.D 23, 1693 (1981)].

Keywords

interferometry

Cite

@article{arxiv.2212.07708,
  title  = {Sensitivity of quantum-enhanced interferometers},
  author = {Dariya Salykina and Farid Ya. Khalili},
  journal= {arXiv preprint arXiv:2212.07708},
  year   = {2022}
}

Comments

26 pages, 13 figures

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