| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Non-Markovian and Non-Perturbative Entanglement Dynamics of Biomolecular Excitons |
| LIU Zhi-Qiang, LIANG Xian-Ting**
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Department of Physics and Institute of Modern Physics, Ningbo University, Ningbo 315211
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| Cite this article: |
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LIU Zhi-Qiang, LIANG Xian-Ting 2011 Chin. Phys. Lett. 28 089201 |
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Abstract We investigate the entanglement dynamics of two coupled chromophore pairs embedded in a protein-solvent environment. The non-Markovian and non-perturbative hierarchical expansion technique is used in the solution of the quantum dynamics. The spectral distribution function of the bath is set with the Drude–Lorentz form. It is shown that the evolutions of the entanglement described by the measures of negativity and concurrence are in agreement with each other. They decay to zero in a short time and the sudden death and sudden birth can be observed in the process of the evolutions of the entanglement.
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| Keywords:
92.20.Ch
03.67.Mn
87.18.Ng
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Received: 11 April 2011
Published: 28 July 2011
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| PACS: |
92.20.ch
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(Photochemistry, photosynthesis)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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87.18.Ng
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