Two-qubit entanglement dynamics for two different non-Markovian environments
- Autori: Bellomo, B; Lo Franco, R; Maniscalco, S; Compagno, G
- Anno di pubblicazione: 2010
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: 03.67.Mn Entanglement measures, witnesses, and other characterizations; 03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.); 03.67.Lx Quantum computation architectures and implementations
- OA Link: http://hdl.handle.net/10447/66672
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.