Squeezing more from a quantum nondemolition measurement

B.C. Buchler, P.K. Lam, H.A. Bachor, Ulrik Lund Andersen, T.C. Ralph

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Abstract

We use a stable, 5 dB, amplitude squeezed source for a quantum nondomolition (QND) experiment. The performance of our QND system is enhanced by an electro-optic feedforward loop which improve,, the signal transfer efficiency. At best, we measure a total signal transfer of 1.81 and conditional variance of 0.55.
Original languageEnglish
JournalPhysical Review A
Volume65
Issue number1
Pages (from-to)011803
ISSN2469-9926
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Physical Society

Keywords

  • STATES
  • TELEPORTATION
  • OPTICAL TAP
  • BEAM SPLITTER
  • ELECTROOPTIC FEEDFORWARD
  • BACKACTION EVADING MEASUREMENTS
  • LIGHT
  • EXPERIMENTAL REALIZATION
  • AMPLIFIER
  • FEEDBACK

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