TY - JOUR
T1 - Factorization law for entanglement evolution of two qubits in non-Markovian pure dephasing channels
AU - Li, Jun Gang
AU - Zou, Jian
AU - Shao, Bin
PY - 2011/6/13
Y1 - 2011/6/13
N2 - The entanglement evolution of two qubits in local, two-sided non-Markovian pure dephasing channels is investigated. It is found that for the two-sided pure dephasing channel case, when the qubits are initially prepared in a general class of states, whether pure or mixed, the entanglement can be expressed as the products of initial entanglement and the channels' action on the maximally entangled state. This provide us a good approximation to characterize the entanglement dynamics of arbitrary states to some extent.
AB - The entanglement evolution of two qubits in local, two-sided non-Markovian pure dephasing channels is investigated. It is found that for the two-sided pure dephasing channel case, when the qubits are initially prepared in a general class of states, whether pure or mixed, the entanglement can be expressed as the products of initial entanglement and the channels' action on the maximally entangled state. This provide us a good approximation to characterize the entanglement dynamics of arbitrary states to some extent.
KW - Entanglement evolution
KW - Non-Markovian
KW - Pure dephasing channel
UR - http://www.scopus.com/inward/record.url?scp=79957444325&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2011.04.053
DO - 10.1016/j.physleta.2011.04.053
M3 - Article
AN - SCOPUS:79957444325
SN - 0375-9601
VL - 375
SP - 2300
EP - 2304
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 24
ER -