Controlling entanglement between two separated atoms by quantum-jump-based feedback

Dong Xue; Jian Zou; Jun Gang Li; Wei Yi Chen; Bin Shao

doi:10.1088/0953-4075/43/4/045503

Controlling entanglement between two separated atoms by quantum-jump-based feedback

Dong Xue^*
, Jian Zou
, Jun Gang Li
, Wei Yi Chen
, Bin Shao

^*Corresponding author for this work

School of Physics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We consider a model consisting of two (two-level) atoms which are placed in two separated heavily damped cavities respectively. We show that the quantum-jump-based feedback based on joint measurement can be used to generate a steady entangled state between two atoms against decoherence. We analyse the effects of general local control Hamiltonians in the performance of entanglement production and show that by choosing a proper control Hamiltonian the steady maximal entanglement between two separated atoms can be protected.

Original language	English
Article number	045503
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	43
Issue number	4
DOIs	https://doi.org/10.1088/0953-4075/43/4/045503
Publication status	Published - 2010

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abstract = "We consider a model consisting of two (two-level) atoms which are placed in two separated heavily damped cavities respectively. We show that the quantum-jump-based feedback based on joint measurement can be used to generate a steady entangled state between two atoms against decoherence. We analyse the effects of general local control Hamiltonians in the performance of entanglement production and show that by choosing a proper control Hamiltonian the steady maximal entanglement between two separated atoms can be protected.",

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AU - Xue, Dong

AU - Zou, Jian

AU - Li, Jun Gang

AU - Chen, Wei Yi

AU - Shao, Bin

PY - 2010

Y1 - 2010

N2 - We consider a model consisting of two (two-level) atoms which are placed in two separated heavily damped cavities respectively. We show that the quantum-jump-based feedback based on joint measurement can be used to generate a steady entangled state between two atoms against decoherence. We analyse the effects of general local control Hamiltonians in the performance of entanglement production and show that by choosing a proper control Hamiltonian the steady maximal entanglement between two separated atoms can be protected.

AB - We consider a model consisting of two (two-level) atoms which are placed in two separated heavily damped cavities respectively. We show that the quantum-jump-based feedback based on joint measurement can be used to generate a steady entangled state between two atoms against decoherence. We analyse the effects of general local control Hamiltonians in the performance of entanglement production and show that by choosing a proper control Hamiltonian the steady maximal entanglement between two separated atoms can be protected.

UR - https://www.scopus.com/pages/publications/75949127444

U2 - 10.1088/0953-4075/43/4/045503

DO - 10.1088/0953-4075/43/4/045503

M3 - Article

AN - SCOPUS:75949127444

SN - 0953-4075

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JO - Journal of Physics B: Atomic, Molecular and Optical Physics

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IS - 4

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ER -

Controlling entanglement between two separated atoms by quantum-jump-based feedback

Abstract

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