Noise-induced quantum correlations via quantum feedback control

Jie Song; Yan Xia; Xiu Dong Sun

doi:10.1364/JOSAB.29.000268

Noise-induced quantum correlations via quantum feedback control

Jie Song^*
, Yan Xia
, Xiu Dong Sun

^*Corresponding author for this work

School of Physics

Fuzhou University
Dalian University of Technology
Harbin Institute of Technology

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

8 Scopus citations

Abstract

We study a physical system for creation of quantum correlations by quantum feedback control. The system is composed of two three-level atoms, each of which interacts with one of two coupled cavities. By appropriately choosing the feedback strength, we show that an arbitrary initial state can be deterministically driven to a steadystate that has a nonzero quantum discord or entanglement. It is also found that the effect of atomic spontaneous emission on quantum correlations is suppressed efficiently by increasing the frequency detuning.

Original language	English
Pages (from-to)	268-273
Number of pages	6
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	29
Issue number	3
DOIs	https://doi.org/10.1364/JOSAB.29.000268
State	Published - Mar 2012

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10.1364/JOSAB.29.000268

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title = "Noise-induced quantum correlations via quantum feedback control",

abstract = "We study a physical system for creation of quantum correlations by quantum feedback control. The system is composed of two three-level atoms, each of which interacts with one of two coupled cavities. By appropriately choosing the feedback strength, we show that an arbitrary initial state can be deterministically driven to a steadystate that has a nonzero quantum discord or entanglement. It is also found that the effect of atomic spontaneous emission on quantum correlations is suppressed efficiently by increasing the frequency detuning.",

author = "Jie Song and Yan Xia and Sun, \{Xiu Dong\}",

year = "2012",

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AU - Xia, Yan

AU - Sun, Xiu Dong

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N2 - We study a physical system for creation of quantum correlations by quantum feedback control. The system is composed of two three-level atoms, each of which interacts with one of two coupled cavities. By appropriately choosing the feedback strength, we show that an arbitrary initial state can be deterministically driven to a steadystate that has a nonzero quantum discord or entanglement. It is also found that the effect of atomic spontaneous emission on quantum correlations is suppressed efficiently by increasing the frequency detuning.

AB - We study a physical system for creation of quantum correlations by quantum feedback control. The system is composed of two three-level atoms, each of which interacts with one of two coupled cavities. By appropriately choosing the feedback strength, we show that an arbitrary initial state can be deterministically driven to a steadystate that has a nonzero quantum discord or entanglement. It is also found that the effect of atomic spontaneous emission on quantum correlations is suppressed efficiently by increasing the frequency detuning.

UR - https://www.scopus.com/pages/publications/84863298304

U2 - 10.1364/JOSAB.29.000268

DO - 10.1364/JOSAB.29.000268

M3 - 文章

AN - SCOPUS:84863298304

SN - 0740-3224

VL - 29

SP - 268

EP - 273

JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

IS - 3

ER -

Noise-induced quantum correlations via quantum feedback control

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