Interferometry below the standard quantum limit with Bose-Einstein condensates

J.A. Dunningham, K. Burnett, S.M. Barnett

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

We discuss a scheme for using entangled Bose-Einstein condensates to detect phase differences with a resolution better than the standard quantum limit. To date, schemes have shown that the enhancement in phase resolution gained by entangling condensates is lost when dissipation is present. Here we show how this can be overcome by using number correlated condensates, as have been produced recently in the laboratory. We also outline a scheme for measuring this phase that is not destroyed when the effects of finite detector efficiency are considered.
Original languageEnglish
Pages (from-to)150401-1
Number of pages150400
JournalPhysical Review Letters
Volume89
Issue number15
DOIs
Publication statusPublished - Sep 2002

Fingerprint

Bose-Einstein condensates
condensates
interferometry
dissipation
augmentation
detectors

Keywords

  • Bose-Einstein condensate
  • quantum physics
  • phase resolution
  • photonics
  • optics

Cite this

Dunningham, J.A. ; Burnett, K. ; Barnett, S.M. / Interferometry below the standard quantum limit with Bose-Einstein condensates. In: Physical Review Letters. 2002 ; Vol. 89, No. 15. pp. 150401-1.
@article{fcd2362bb6e04a2588b5a8eda43cbc11,
title = "Interferometry below the standard quantum limit with Bose-Einstein condensates",
abstract = "We discuss a scheme for using entangled Bose-Einstein condensates to detect phase differences with a resolution better than the standard quantum limit. To date, schemes have shown that the enhancement in phase resolution gained by entangling condensates is lost when dissipation is present. Here we show how this can be overcome by using number correlated condensates, as have been produced recently in the laboratory. We also outline a scheme for measuring this phase that is not destroyed when the effects of finite detector efficiency are considered.",
keywords = "Bose-Einstein condensate, quantum physics, phase resolution, photonics, optics",
author = "J.A. Dunningham and K. Burnett and S.M. Barnett",
year = "2002",
month = "9",
doi = "10.1103/PhysRevLett.89.150401",
language = "English",
volume = "89",
pages = "150401--1",
journal = "Physical Review Letters",
issn = "0031-9007",
number = "15",

}

Interferometry below the standard quantum limit with Bose-Einstein condensates. / Dunningham, J.A.; Burnett, K.; Barnett, S.M.

In: Physical Review Letters, Vol. 89, No. 15, 09.2002, p. 150401-1.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Interferometry below the standard quantum limit with Bose-Einstein condensates

AU - Dunningham, J.A.

AU - Burnett, K.

AU - Barnett, S.M.

PY - 2002/9

Y1 - 2002/9

N2 - We discuss a scheme for using entangled Bose-Einstein condensates to detect phase differences with a resolution better than the standard quantum limit. To date, schemes have shown that the enhancement in phase resolution gained by entangling condensates is lost when dissipation is present. Here we show how this can be overcome by using number correlated condensates, as have been produced recently in the laboratory. We also outline a scheme for measuring this phase that is not destroyed when the effects of finite detector efficiency are considered.

AB - We discuss a scheme for using entangled Bose-Einstein condensates to detect phase differences with a resolution better than the standard quantum limit. To date, schemes have shown that the enhancement in phase resolution gained by entangling condensates is lost when dissipation is present. Here we show how this can be overcome by using number correlated condensates, as have been produced recently in the laboratory. We also outline a scheme for measuring this phase that is not destroyed when the effects of finite detector efficiency are considered.

KW - Bose-Einstein condensate

KW - quantum physics

KW - phase resolution

KW - photonics

KW - optics

UR - http://dx.doi.org/10.1103/PhysRevLett.89.150401

U2 - 10.1103/PhysRevLett.89.150401

DO - 10.1103/PhysRevLett.89.150401

M3 - Article

VL - 89

SP - 150401

EP - 150401

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 15

ER -