Sudden death and sudden birth of entanglement in common structured reservoirs

L. Mazzola, S. Maniscalco, J. Piilo, K.-A. Suominen, and B. M. Garraway
Phys. Rev. A 79, 042302 – Published 1 April 2009

Abstract

We study the exact entanglement dynamics of two qubits in a common structured reservoir. We demonstrate that for certain classes of entangled states, entanglement sudden death occurs, while for certain initially factorized states, entanglement sudden birth takes place. The backaction of the non-Markovian reservoir is responsible for revivals of entanglement after sudden death has occurred, and also for periods of disentanglement following entanglement sudden birth.

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  • Received 19 December 2008

DOI:https://doi.org/10.1103/PhysRevA.79.042302

©2009 American Physical Society

Authors & Affiliations

L. Mazzola1, S. Maniscalco1,*, J. Piilo1, K.-A. Suominen1, and B. M. Garraway2

  • 1Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto, Finland
  • 2Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom

  • *sabrina.maniscalco@utu.fi

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Vol. 79, Iss. 4 — April 2009

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