Nonlocal fluctuations and control of dimer entanglement dynamics

Details Nonlocal fluctuations and control of dimer entanglement dynamics Nonlocal fluctuations and control of dimer entanglement dynamics

2010-02-08

arxiv.org/abs/1002.1621v1

Phys. Rev. A 82, 042102 (2010)

Physics

Quantum Physics

9 pages, 10 figures

Scientific paper

10.1103/PhysRevA.82.042102

We report on the dissipative dynamics of an entangled, bipartite interacting system. We show how to induce and control the so-called early stage disentanglement (and the delayed entanglement generation) dynamics by means of a driving laser field. We demonstrate that some of the features currently associated with pure non-Markovian effects in such entanglement behavior can actually take place in Markovian environments if background noise QED fluctuations are considered. We illustrate this for the case of a dimer interacting molecular system for which emission rates, interaction strength, and radiative corrections have been previously measured. We also show that even in the absence of collective decay mechanisms and qubit-qubit interactions, the entanglement still exhibits collapse-revival behavior. Our results indicate that zero point energy fluctuations should be taken into account when formulating precise entanglement dynamics statements.

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