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Abstract: We study the entanglement dynamics of two qubits, each of which is embeddedinto its local amplitude-damping reservoir, and the entanglement distributionamong all the bipartite subsystems including qubit-qubit, qubit-reservoir, andreservoir-reservoir. It is found that the entanglement can be stablydistributed among all components, which is much different to the resultobtained under the Born-Markovian approximation by C. E. L\-{o}pez {\it et al.}Phys. Rev. Lett. \textbf{101}, 080503 2008, and particularly it alsosatisfies an identity. Our unified treatment includes the previous results asspecial cases. The result may give help to understand the physical nature ofentanglement under decoherence.



Autor: Qing-Jun Tong, Jun-Hong An, Hong-Gang Luo, C. H. Oh

Fuente: https://arxiv.org/







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