期刊
PHYSICS LETTERS A
卷 377, 期 37, 页码 2307-2316出版社
ELSEVIER
DOI: 10.1016/j.physleta.2013.07.013
关键词
Entanglement; Decoherence; XY model; Noise effects
The perturbation of multiqubit systems by an external noise can induce various effects like decoherence, stochastic resonance and anti-resonance, and noise-shielding. We investigate how the appearance of these effects on disentanglement time depends on the initial preparation of the systems. We present results for 2-, 3- and 4-qubit chains in various arrangements and observe a clear dependence on the combination of initial geometry of the state space and the placement of noise. Finally, we see that temperature can play a constructive role for the control of these noise induced effects. (C) 2013 Elsevier B.V. All rights reserved.
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