Phys. Rev. Lett. 100, 090503 (2008) [4 pages]

Protecting Entanglement via the Quantum Zeno Effect

Abstract

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Sabrina Maniscalco¹, Francesco Francica², Rosa L. Zaffino², Nicola Lo Gullo², and Francesco Plastina²
¹Department of Physics, University of Turku, Turun yliopisto, FIN-20014 Turku, Finland
²Dipartimento di Fisica, Università della Calabria, & INFN-Gruppo collegato di Cosenza, 87036 Arcavacata di Rende (CS) Italy

Received 20 October 2007; published 7 March 2008

We study the exact entanglement dynamics of two atoms in a lossy resonator. Besides discussing the steady-state entanglement, we show that in the strong coupling regime the system-reservoir correlations induce entanglement revivals and oscillations and propose a strategy to fight against the deterioration of the entanglement using the quantum Zeno effect.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.100.090503

DOI:

10.1103/PhysRevLett.100.090503

PACS:

03.67.Mn, 03.65.Ta, 03.65.Ud, 03.65.Yz

sabrina.maniscalco@utu.fi

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Phys. Rev. Lett. 100, 090503 (2008) [4 pages]

Protecting Entanglement via the Quantum Zeno Effect