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  Initial state preparation with dynamically generated system-environment correlations

Fleming, C. H., Hu, B. L., & Roura, A. (2011). Initial state preparation with dynamically generated system-environment correlations. Physical Review E, 84: 021106. doi:10.1103/PhysRevE.84.021106.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-94B3-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-94B6-7
Genre: Journal Article

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1101.2668 (Preprint), 402KB
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 Creators:
Fleming, C. H., Author
Hu, B. L., Author
Roura, Albert1, Author              
Affiliations:
1Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: Quantum Physics, quant-ph
 Abstract: The dependence of the dynamics of open quantum systems upon initial correlations between the system and environment is an utterly important yet poorly understood subject. For technical convenience most prior studies assume factorizable initial states where the system and its environments are uncorrelated, but these conditions are not very realistic and give rise to peculiar behaviors. One distinct feature is the rapid build up or a sudden jolt of physical quantities immediately after the system is brought in contact with its environments. The ultimate cause of this is an initial imbalance between system-environment correlations and coupling. In this note we demonstrate explicitly how to avoid these unphysical behaviors by proper adjustments of correlations and/or the coupling, for setups of both theoretical and experimental interest. We provide simple analytical results in terms of quantities that appear in linear (as opposed to affine) master equations derived for factorized initial states.

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 Dates: 2011-01-132011
 Publication Status: Published in print
 Pages: 6 pages, 2 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1101.2668
URI: http://arxiv.org/abs/1101.2668
DOI: 10.1103/PhysRevE.84.021106
 Degree: -

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Title: Physical Review E
Source Genre: Journal
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Publ. Info: Melville, NY : Published by the American Physical Society through the American Institute of Physics
Pages: - Volume / Issue: 84 Sequence Number: 021106 Start / End Page: - Identifier: ISSN: 1539-3755
CoNE: /journals/resource/954925225012