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Coherent information losses between two-qubit pair interacting with an environment
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
2006 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 257, no 1, 206-215 p.Article in journal (Refereed) Published
Abstract [en]

We quantify the amount of information exchanged between a system of two qubit pair and the environment. We find that there is a good chance for an Eavesdropper to distill information from the entangled qubits. This chance decreases for less entangled qubits. In particular, we considered two examples: The first is an entangled pure two qubit state and the second an entangled state from two cavities, with a depolarizing channel as an environment. Also the effect of decoherence due to the channel parameter is studied.

Place, publisher, year, edition, pages
2006. Vol. 257, no 1, 206-215 p.
Keyword [en]
National Category
Computer and Information Science
URN: urn:nbn:se:kth:diva-37629DOI: 10.1016/j.optcom.2005.07.025ISI: 000233786700024ScopusID: 2-s2.0-28044447245OAI: diva2:434654
QC 20110816Available from: 2011-08-16 Created: 2011-08-15 Last updated: 2011-08-16Bibliographically approved

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Bourennane, Mohamed
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