Self-trapping of polarons with off-diagonal coupling
A variational polaron wave function pioneered by Toyozawa is utilized to elucidate exciton-phonon correlations in a generalized Holstein Hamiltonian in the simultaneous presence of diagonal and off-diagonal exciton-phonon couplings. We show that a simple analysis of quantum entanglement between exci...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
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2011
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| Online Access: | https://hdl.handle.net/10356/90492 http://hdl.handle.net/10220/6741 |
| _version_ | 1826119637494923264 |
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| author | Sun, Jin Zhao, Yang Liang, Wanzhen |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Sun, Jin Zhao, Yang Liang, Wanzhen |
| author_sort | Sun, Jin |
| collection | NTU |
| description | A variational polaron wave function pioneered by Toyozawa is utilized to elucidate exciton-phonon correlations in a generalized Holstein Hamiltonian in the simultaneous presence of diagonal and off-diagonal exciton-phonon couplings. We show that a simple analysis of quantum entanglement between excitonic and phononic degrees of freedom allows one to effectively characterize both the small- and large-polaron regimes as well as the crossover in between. |
| first_indexed | 2024-10-01T05:03:20Z |
| format | Journal Article |
| id | ntu-10356/90492 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:03:20Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/904922023-07-14T15:51:24Z Self-trapping of polarons with off-diagonal coupling Sun, Jin Zhao, Yang Liang, Wanzhen School of Materials Science & Engineering DRNTU::Science::Physics::Atomic physics::Solid state physics A variational polaron wave function pioneered by Toyozawa is utilized to elucidate exciton-phonon correlations in a generalized Holstein Hamiltonian in the simultaneous presence of diagonal and off-diagonal exciton-phonon couplings. We show that a simple analysis of quantum entanglement between excitonic and phononic degrees of freedom allows one to effectively characterize both the small- and large-polaron regimes as well as the crossover in between. Published version 2011-03-07T01:45:37Z 2019-12-06T17:48:40Z 2011-03-07T01:45:37Z 2019-12-06T17:48:40Z 2009 2009 Journal Article Sun, J., Zhao, Y., & Liang, W. (2009). Self-Trapping of Polarons with Off-Diagonal Coupling, Physical Review B, (79), 1-8. https://hdl.handle.net/10356/90492 http://hdl.handle.net/10220/6741 10.1103/PhysRevB.79.155112 en Physical review B © 2009 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at: [Doi: http://dx.doi.org/10.1103/PhysRevB.79.155112]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 8 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Solid state physics Sun, Jin Zhao, Yang Liang, Wanzhen Self-trapping of polarons with off-diagonal coupling |
| title | Self-trapping of polarons with off-diagonal coupling |
| title_full | Self-trapping of polarons with off-diagonal coupling |
| title_fullStr | Self-trapping of polarons with off-diagonal coupling |
| title_full_unstemmed | Self-trapping of polarons with off-diagonal coupling |
| title_short | Self-trapping of polarons with off-diagonal coupling |
| title_sort | self trapping of polarons with off diagonal coupling |
| topic | DRNTU::Science::Physics::Atomic physics::Solid state physics |
| url | https://hdl.handle.net/10356/90492 http://hdl.handle.net/10220/6741 |
| work_keys_str_mv | AT sunjin selftrappingofpolaronswithoffdiagonalcoupling AT zhaoyang selftrappingofpolaronswithoffdiagonalcoupling AT liangwanzhen selftrappingofpolaronswithoffdiagonalcoupling |