Here is analyzed the dynamics of two-qubit entanglement, when the two qubits are initially in a mixed extended Werner-like state and each of them is in a zero temperature non-Markovian environment. The dependence of entanglement dynamics on the purity and degree of entanglement of the initial states and on the amount of non-Markovianity is also given. This extends the previous work about non-Markovian effects on the two-qubit entanglement dynamics for initial Bell-like states [Bellomo et al., Phys. Rev. Lett. 99, 160502 (2007)]. The effect on the two-qubit entanglement dynamics of nonzero temperature in Markovian environments is finally studied.

Bellomo, B., Lo Franco, R., Compagno, G. (2008). Entanglement dynamics of two independent qubits in environments with and without memory. PHYSICAL REVIEW A, 77, 032342-1-032342-10 [10.1103/PhysRevA.77.032342].

Entanglement dynamics of two independent qubits in environments with and without memory

BELLOMO, Bruno;LO FRANCO, Rosario;COMPAGNO, Giuseppe
2008-01-01

Abstract

Here is analyzed the dynamics of two-qubit entanglement, when the two qubits are initially in a mixed extended Werner-like state and each of them is in a zero temperature non-Markovian environment. The dependence of entanglement dynamics on the purity and degree of entanglement of the initial states and on the amount of non-Markovianity is also given. This extends the previous work about non-Markovian effects on the two-qubit entanglement dynamics for initial Bell-like states [Bellomo et al., Phys. Rev. Lett. 99, 160502 (2007)]. The effect on the two-qubit entanglement dynamics of nonzero temperature in Markovian environments is finally studied.
2008
Settore FIS/02 - Fisica Teorica, Modelli E Metodi Matematici
Bellomo, B., Lo Franco, R., Compagno, G. (2008). Entanglement dynamics of two independent qubits in environments with and without memory. PHYSICAL REVIEW A, 77, 032342-1-032342-10 [10.1103/PhysRevA.77.032342].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/50868
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