The quantum correlation evolution properties of entangled coherent states in noisy environments

YANG Zhi-gang

doi:10.3969/j.issn.1000-5641.2016.04.013

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Sep. 2016

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YANG Zhi-gang. The quantum correlation evolution properties of entangled coherent states in noisy environments[J]. Journal of East China Normal University (Natural Sciences), 2016, (4): 111-117. doi: 10.3969/j.issn.1000-5641.2016.04.013

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YANG Zhi-gang. The quantum correlation evolution properties of entangled coherent states in noisy environments[J]. Journal of East China Normal University (Natural Sciences), 2016, (4): 111-117. doi: 10.3969/j.issn.1000-5641.2016.04.013

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The quantum correlation evolution properties of entangled coherent states in noisy environments

doi: 10.3969/j.issn.1000-5641.2016.04.013

YANG Zhi-gang^,

1.
State Key Laboratory of Precision Spectroscopy in Science and Technology, East China Normal University, Shanghai 200062, China

Received Date: 2015-06-24
Publish Date: 2016-07-25

Abstract

Abstract

In this paper, quantum correlation in an entangled coherent state (ECS) is extensively studied with four popular quantifiers, namely, entanglement of formation (E), quantum discord (QD), measurement-induced disturbance (MID) and geometric measure of quantum discord (GQD). Besides, the influence of amplitude damping noises on the quantum correlation is treated. It is found that, E decreases faster than QD.E (QD or MID) behaves quite similarly in an asymmetric and a symmetric noisy channel. Whats more, it is obvious that the Bell state is not always more entangled than the ECS.
- entangled coherent state amplitude damping channel quantum correlation,

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References(1)

References

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