Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit

Petr M. Anisimov; Gretchen M. Raterman; Aravind Chiruvelli; William N. Plick; Sean D. Huver; Hwang Lee; Jonathan P. Dowling

doi:10.1103/PhysRevLett.104.103602

Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit

Quantum Physics 2013-05-29 v1

Authors: Petr M. Anisimov , Gretchen M. Raterman , Aravind Chiruvelli , William N. Plick , Sean D. Huver , Hwang Lee , Jonathan P. Dowling

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Abstract

We study the sensitivity and resolution of phase measurement in a Mach-Zehnder interferometer with two-mode squeezed vacuum (<n> photons on average). We show that super-resolution and sub-Heisenberg sensitivity is obtained with parity detection. In particular, in our setup, dependence of the signal on the phase evolves <n> times faster than in traditional schemes, and uncertainty in the phase estimation is better than 1/<n>.

Keywords

quantum metrology two-mode squeezed vacuum parity detection Heisenberg limit phase measurement Mach-Zehnder interferometer super-resolution

Cite

@article{arxiv.0910.5942,
  title  = {Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit},
  author = {Petr M. Anisimov and Gretchen M. Raterman and Aravind Chiruvelli and William N. Plick and Sean D. Huver and Hwang Lee and Jonathan P. Dowling},
  journal= {arXiv preprint arXiv:0910.5942},
  year   = {2013}
}

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4 pages, 4 figures

Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit

Abstract

Keywords

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