Quantum interference in timed Dicke basis and its effect on bipartite entanglement

Details Quantum interference in timed Dicke basis and its effect on bipartite entanglement Quantum interference in timed Dicke basis and its effect on bipartite entanglement

2011-09-20

arxiv.org/abs/1109.4341v1

Phys. Rev. A 83, 042301 (2011)

Physics

Quantum Physics

9 pages, 8 figures

Scientific paper

10.1103/PhysRevA.83.042301

We analyze the effect of position dependent excitation phase on the properties of entanglement between two qubits formed in atomic systems. We show that the excitation phase induces a vacuum mediated quantum interference in the system that affects the dynamical behavior of entanglement between the qubits. It is also found that the quantum interference leads to a coherent population transfer between the symmetric and antisymmetric states which can considerably modify the dynamics of two-qubit entanglement and can even prevent finite time disentanglement (sudden death) under certain conditions.

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