Entanglement evolution of two qubits under noisy environments

Details Entanglement evolution of two qubits under noisy environments Entanglement evolution of two qubits under noisy environments

2010-12-15

arxiv.org/abs/1012.3206v1

Physical Review A 82, 042318 (2010)

Physics

Quantum Physics

5 pages,1 figure

Scientific paper

The entanglement evolution of two qubits under local, single- and two- sided noisy channels is investigated. It is found that for all pure initial states, the entanglement under a one-sided noisy channel is completely determined by the maximal trace distance which is the main element to construct the measure of non-Markovianity. For the two-sided noisy channel case, when the qubits are initially prepared in a general class of states, no matter pure or mixed, the entanglement can be expressed as the products of initial entanglement and the channels' action on the maximally entangled state.

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