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Advances in Optics and Photonics

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  • Editor: Bahaa E. A. Saleh
  • Vol. 2, Iss. 2 — Jun. 30, 2010

Coherence and entanglement in a two-qubit system

Miguel Orszag and Maritza Hernandez  »View Author Affiliations


Advances in Optics and Photonics, Vol. 2, Issue 2, pp. 229-286 (2010)
http://dx.doi.org/10.1364/AOP.2.000229


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Abstract

Entanglement is a fundamental concept in quantum mechanics. In this review, we study various aspects of coherence and entanglement, illustrated by several examples. We relate the concepts of loss of coherence and disentanglement, via a model of two two-level atoms in different types of reservoir, including cases of both independent and common baths. Finally, we relate decoherence and disentanglement, by focusing on the sudden death of the entanglement and the dependence of the death time with the distance of our initial condition from the decoherence-free subspace. In particular, we study the sudden death of the entanglement in a two-atom system with a common reservoir.

© 2010 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

History
Original Manuscript: November 2, 2009
Revised Manuscript: January 19, 2010
Manuscript Accepted: January 19, 2010
Published: March 17, 2010

Virtual Issues
(2010) Advances in Optics and Photonics

Citation
Miguel Orszag and Maritza Hernandez, "Coherence and entanglement in a two-qubit system," Adv. Opt. Photon. 2, 229-286 (2010)
http://www.opticsinfobase.org/aop/abstract.cfm?URI=aop-2-2-229


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