Entangled photon pairs from the optical decay of biexcitons

Authors
Savasta, S Martino, G Girlanda, R
Citation
S. Savasta et al., Entangled photon pairs from the optical decay of biexcitons, SOL ST COMM, 111(9), 1999, pp. 495-500
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
111
Issue
9
Year of publication
1999
Pages
495 - 500
Database
ISI
SICI code
0038-1098(1999)111:9<495:EPPFTO>2.0.ZU;2-S
Abstract
We show that it is possible to transfer the exciton-exciton Coulomb correla tion to photons, producing thus pairs of near-gap photons with a high degre e of quantum entanglement. The photon pairs emerge from the spontaneous opt ical decay of biexcitons into two polaritons. The pair intensity-correlatio ns, calculated in the low density limit for a CuCl slab, exhibit quantum fe atures which can be observed by coincidence detection. (C) 1999 Published b y Elsevier Science Ltd. All rights reserved.