Improvement of measurement accuracy in SU(1,1) interferometers

C. Brif; Y. Ben-Aryeh

doi:10.1088/1355-5111/8/1/001

Improvement of measurement accuracy in SU(1,1) interferometers

Quantum Physics 2009-10-30 v1

Authors: C. Brif , Y. Ben-Aryeh

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Abstract

We consider an SU(1,1) interferometer employing four-wave mixers that is fed with two-mode states which are both coherent and intelligent states of the SU(1,1) Lie group. It is shown that the phase sensitivity of the interferometer can be essentially improved by using input states with a large photon-number difference between the modes.

Keywords

su(1,1) interferometer four-wave mixer intelligent states phase sensitivity photon-number difference

Cite

@article{arxiv.quant-ph/9604016,
  title  = {Improvement of measurement accuracy in SU(1,1) interferometers},
  author = {C. Brif and Y. Ben-Aryeh},
  journal= {arXiv preprint arXiv:quant-ph/9604016},
  year   = {2009}
}

Comments

LaTeX, 5 pages, 1 figure (compressed PostScript, available at http://www.technion.ac.il/~brif/graphics/interfer_graph/qopt.ps.gz ). More information on http://www.technion.ac.il/~brif/science.html

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