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research article
Quantum complementarity of microcavity polaritons
We present an experiment that probes polariton quantum correlations by exploiting quantum complementarity. Specifically, we find that polaritons in two distinct idler modes interfere if and only if they share the same signal mode so that "which-way" information cannot be gathered. The experimental results prove the existence of polariton pair correlations that store the which-way information. This interpretation is confirmed by a theoretical analysis of the measured interference visibility in terms of quantum Langevin equations.
Type
research article
Web of Science ID
WOS:000230092000041
Authors
Publication date
2005
Published in
Volume
94
Issue
24
Article Number
246401
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 22, 2009
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