Measurement of quantum weak values of photon polarization

Pryde, G. J., O'Brien, J. L., White, A. G., Ralph, T. C. and Wiseman, H. M. (2005) Measurement of quantum weak values of photon polarization. Physical Review Letters, 94 22: 220405-1-220405-4. doi:10.1103/PhysRevLett.94.220405

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Author Pryde, G. J.
O'Brien, J. L.
White, A. G.
Ralph, T. C.
Wiseman, H. M.
Title Measurement of quantum weak values of photon polarization
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2005
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.94.220405
Open Access Status File (Publisher version)
Volume 94
Issue 22
Start page 220405-1
End page 220405-4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2005
Language eng
Subject C1
240300 Atomic and Molecular Physics; Nuclear and Particle Physics; Plasma Physics
780102 Physical sciences
02 Physical Sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract We experimentally determine weak values for a single photon's polarization, obtained via a weak measurement that employs a two-photon entangling operation, and postselection. The weak values cannot be explained by a semiclassical wave theory, due to the two-photon entanglement. We observe the variation in the size of the weak value with measurement strength, obtaining an average measurement of the S-1 Stokes parameter more than an order of magnitude outside of the operator's spectrum for the smallest measurement strengths.
Keyword Physics, multidisciplinary
Which-way experiments
Counterfactual statements
Momentum-transfer
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Wed, 15 Aug 2007, 05:28:17 EST