Off-resonant entanglement generation in a lossy cavity

Francesco Francica, Sabrina Maniscalco, Jyrki Piilo, Francesco Plastina, Kalle-Antti Suominen

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)
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We provide an analytical description of the entanglement dynamics of two qubits coupled to a common structured reservoir at zero temperature. We derive the conditions to maximize reservoir-induced entanglement for an initially factorized state of the two-qubit system. In particular, when the two qubits are placed inside a lossy cavity, we show that high values of entanglement can be obtained, even in the bad-cavity limit, in the dispersive regime. Finally we show that, under certain conditions, the entanglement dynamics exhibits quantum beats and we explain their physical origin in terms of the interference between two different transitions coupling the dressed states of the system.
Original languageEnglish
Article number032310
Number of pages10
JournalPhysical Review A
Issue number3
Publication statusPublished - 11 Mar 2009


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