We study the time behaviour of entanglement between two noninteracting qubits, each immersed in its own environment for two different non-Markovian conditions: a high-Q cavity slightly off-resonant with the qubit transition frequency and a nonperfect photonic band gap (PBG). We find that revivals and retardation of entanglement loss may occur by adjusting the cavity–qubit detuning, in the first case, while partial entanglement trapping occurs in a nonideal PBG.
Bellomo, B., Lo Franco, R., Maniscalco, S., Compagno, G. (2010). Two-qubit entanglement dynamics for two different non-Markovian environments. PHYSICA SCRIPTA, 2010(T140), 014014 [10.1088/0031-8949/2010/T140/014014].
Two-qubit entanglement dynamics for two different non-Markovian environments
BELLOMO, Bruno;LO FRANCO, Rosario;COMPAGNO, Giuseppe
2010-01-01
Abstract
We study the time behaviour of entanglement between two noninteracting qubits, each immersed in its own environment for two different non-Markovian conditions: a high-Q cavity slightly off-resonant with the qubit transition frequency and a nonperfect photonic band gap (PBG). We find that revivals and retardation of entanglement loss may occur by adjusting the cavity–qubit detuning, in the first case, while partial entanglement trapping occurs in a nonideal PBG.
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