Quantum complementarity of microcavity polariton

Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 2007. Quantum complementarity of microcavity polariton. Presented at: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV, San Jose, CA, 20 January 2007. Published in: Tsen, Kong-Thon, Song, Jin-Joo, Cohen, Marshall J. and Glesener, John W. eds. Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV (Proceedings of SPIE). Proceedings of SPIE (6471) Bellingham WA: The International Society for Optical Engineering, p. 647109. 10.1117/12.697280

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Abstract

The spontaneous and self-stimulated parametric emission from a semiconductor microcavity after resonant pulsed excitation is measured. The emission of the lower polariton branch is resolved in two-dimensional momentum space, using either time-resolved or time-integrated detection. Employing two pump directions, we experimentally probe polariton quantum correlations by exploiting quantum complementarity. 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.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	The International Society for Optical Engineering
ISBN:	9780819465849
ISSN:	0277-786X
Last Modified:	28 Oct 2022 08:36
URI:	https://orca.cardiff.ac.uk/id/eprint/71424

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