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

Gilchrist, A, Deuar, P and Reid, MD (1998) Contradiction of quantum mechanics with local hidden variables for quadrature phase amplitude measurements. Physical Review Letters, 80 15: 3169-3172. doi:10.1103/PhysRevLett.80.3169

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Author Gilchrist, A
Deuar, P
Reid, MD
Title Contradiction of quantum mechanics with local hidden variables for quadrature phase amplitude measurements
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 1998
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.80.3169
Open Access Status File (Publisher version)
Volume 80
Issue 15
Start page 3169
End page 3172
Total pages 4
Publisher IEEE
Language eng
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.
Keyword Physics, Multidisciplinary
Podolsky-rosen Paradox
Macroscopically Distinct States
Bell Inequality
Experimental Realization
Arbitrarily Large
Coherent States
Photon Pairs
Violation
Realism
Superposition
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Mon, 13 Aug 2007, 10:24:19 EST