Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems

Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems

We investigate the dynamical enhancement of entanglement by means of local squeezing of initial separable Gaussian states in two coupled harmonic oscillator systems. Interestingly, the maximum generation of entanglement between the two modes is not a monotonically increasing function of the squeezin...

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Main Authors: Er, C. H., Chung, Ning Ning, Chew, Lock Yue
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Science::Physics
Online Access:https://hdl.handle.net/10356/99236
http://hdl.handle.net/10220/17194
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-992362020-03-07T12:31:31Z Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems Er, C. H. Chung, Ning Ning Chew, Lock Yue School of Physical and Mathematical Sciences Temasek Laboratories DRNTU::Science::Physics We investigate the dynamical enhancement of entanglement by means of local squeezing of initial separable Gaussian states in two coupled harmonic oscillator systems. Interestingly, the maximum generation of entanglement between the two modes is not a monotonically increasing function of the squeezing parameter. Instead, there exists a critical degree of squeezing rc for the maximum entanglement to be enhanced. For the coupled oscillator systems considered, we have derived the analytical expressions of rc. 2013-11-01T01:42:09Z 2019-12-06T20:04:56Z 2013-11-01T01:42:09Z 2019-12-06T20:04:56Z 2013 2013 Journal Article Er, C. H., Chung, N. N., & Chew, L. Y. (2013). Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems. Physica scripta, 87(2), 025001-. https://hdl.handle.net/10356/99236 http://hdl.handle.net/10220/17194 10.1088/0031-8949/87/02/025001 en Physica scripta
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Physics
spellingShingle DRNTU::Science::Physics
Er, C. H.
Chung, Ning Ning
Chew, Lock Yue
Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
description We investigate the dynamical enhancement of entanglement by means of local squeezing of initial separable Gaussian states in two coupled harmonic oscillator systems. Interestingly, the maximum generation of entanglement between the two modes is not a monotonically increasing function of the squeezing parameter. Instead, there exists a critical degree of squeezing rc for the maximum entanglement to be enhanced. For the coupled oscillator systems considered, we have derived the analytical expressions of rc.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Er, C. H.
Chung, Ning Ning
Chew, Lock Yue
format Article
author Er, C. H.
Chung, Ning Ning
Chew, Lock Yue
author_sort Er, C. H.
title Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
title_short Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
title_full Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
title_fullStr Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
title_full_unstemmed Threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
title_sort threshold effect and entanglement enhancement through local squeezing of initial separable states in continuous-variable systems
publishDate 2013
url https://hdl.handle.net/10356/99236
http://hdl.handle.net/10220/17194
_version_ 1681044173263732736

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