Contradiction of quantum mechanics with local hidden variables for quadrature phase amplitude measurements

A. Gilchrist*, P. Deuar, M. D. Reid

*Corresponding author for this work

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

We demonstrate a contradiction of quantum mechanics with local hidden variable theories for continuous quadrature phase amplitude ("position" and "momentum") measurements. For any quantum state, this contradiction is lost for situations where the quadrature phase amplitude results are always macroscopically distinct. We show that for optical realizations of this experiment, where one uses homodyne detection techniques to perform the quadrature phase amplitude measurement, one has an amplification prior to detection, so that macroscopic fields are incident on photodiode detectors. The high efficiencies of such detectors may open a way for a loophole-free test of local hidden variable theories.

Original languageEnglish
Pages (from-to)3169-3172
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number15
DOIs
Publication statusPublished - 1998
Externally publishedYes

Fingerprint Dive into the research topics of 'Contradiction of quantum mechanics with local hidden variables for quadrature phase amplitude measurements'. Together they form a unique fingerprint.

Cite this