Hokkaido University Collection of Scholarly and Academic Papers >
Research Institute for Electronic Science >
Peer-reviewed Journal Articles, etc >
Characterization of two-photon polarization mixed states generated from entangled-classical hybrid photon source
Title: | Characterization of two-photon polarization mixed states generated from entangled-classical hybrid photon source |
Authors: | Kumano, H. Browse this author | Matsuda, K. Browse this author | Ekuni, S. Browse this author | Sasakura, H. Browse this author | Suemune, I. Browse this author |
Issue Date: | 18-Jul-2011 |
Publisher: | Optical Society of America |
Journal Title: | Optics Express |
Volume: | 19 |
Issue: | 15 |
Start Page: | 14249 |
End Page: | 14259 |
Publisher DOI: | 10.1364/OE.19.014249 |
PMID: | 21934789 |
Abstract: | We experimentally prepare bi-photon mixed states in polarization employing an entangled-classical hybrid photon emitter which can properly model solid-state entangled photon sources with uncorrelated background photons. Polarization-uncorrelated photon pairs in totally mixed (TM) states are embodied with classical thermal radiation, while the polarization-entangled ones in a Bell state are generated by conventional parametric down conversion. The bi-photon states generated from the hybrid photon emitter are characterized in terms of a linear entropy-tangle plane, which reveals the formation of two-qubit Werner states. We also propose a direct way for evaluating the Werner states by means of minimal coincidence counts measurements. This simple method can be widely applicable in examining the bi-photon states from solid-state entangled photon sources, in which the polarization-entangled photon pairs have temporal correlation while the background photons in the TM states do not. |
Rights: | © 2011 Optical Society of America |
Type: | article |
URI: | http://hdl.handle.net/2115/46906 |
Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 熊野 英和
|