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Testing Contextuality on Quantum Ensembles with One Clean Qubit

Author(s)
Moussa, Osama; Ryan, Colm A.; Cory, David G.; Laflamme, Raymond
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Abstract
We present a protocol to evaluate the expectation value of the correlations of measurement outcomes for ensembles of quantum systems, and use it to experimentally demonstrate—under an assumption of fair sampling—the violation of an inequality that is satisfied by any noncontextual hidden-variables theory. The experiment is performed on an ensemble of molecular nuclear spins in the solid state, using established nuclear magnetic resonance techniques for quantum-information processing.
Date issued
2010-04
URI
http://hdl.handle.net/1721.1/58715
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Moussa, Osama et al. “Testing Contextuality on Quantum Ensembles with One Clean Qubit.” Physical Review Letters 104.16 (2010): 160501. © 2010 The American Physical Society.
Version: Final published version
ISSN
0031-9007

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