Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach
The concept of polaron, emerged from condense matter physics, describes the dynamical interaction of moving particle with its surrounding bosonic modes. This concept has been developed into a useful method to treat open quantum systems with a complete range of system-bath coupling strength. Especial...
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| Format: | Article |
| Language: | English |
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Higher Education Press
2017
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| Online Access: | http://hdl.handle.net/1721.1/106934 https://orcid.org/0000-0002-5787-6615 https://orcid.org/0000-0001-7616-7809 |
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| author | Xu, Dazhi Cao, Jianshu |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Xu, Dazhi Cao, Jianshu |
| author_sort | Xu, Dazhi |
| collection | MIT |
| description | The concept of polaron, emerged from condense matter physics, describes the dynamical interaction of moving particle with its surrounding bosonic modes. This concept has been developed into a useful method to treat open quantum systems with a complete range of system-bath coupling strength. Especially, the polaron transformation approach shows its validity in the intermediate coupling regime, in which the Redfield equation or Fermi’s golden rule will fail. In the polaron frame, the equilibrium distribution carried out by perturbative expansion presents a deviation from the canonical distribution, which is beyond the usual weak coupling assumption in thermodynamics. A polaron transformed Redfield equation (PTRE) not only reproduces the dissipative quantum dynamics but also provides an accurate and efficient way to calculate the non-equilibrium steady states. Applications of the PTRE approach to problems such as exciton diffusion, heat transport and light-harvesting energy transfer are presented. |
| first_indexed | 2024-09-23T12:25:41Z |
| format | Article |
| id | mit-1721.1/106934 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:25:41Z |
| publishDate | 2017 |
| publisher | Higher Education Press |
| record_format | dspace |
| spelling | mit-1721.1/1069342022-10-01T09:11:05Z Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach Xu, Dazhi Cao, Jianshu Massachusetts Institute of Technology. Department of Chemistry Xu, Dazhi Cao, Jianshu The concept of polaron, emerged from condense matter physics, describes the dynamical interaction of moving particle with its surrounding bosonic modes. This concept has been developed into a useful method to treat open quantum systems with a complete range of system-bath coupling strength. Especially, the polaron transformation approach shows its validity in the intermediate coupling regime, in which the Redfield equation or Fermi’s golden rule will fail. In the polaron frame, the equilibrium distribution carried out by perturbative expansion presents a deviation from the canonical distribution, which is beyond the usual weak coupling assumption in thermodynamics. A polaron transformed Redfield equation (PTRE) not only reproduces the dissipative quantum dynamics but also provides an accurate and efficient way to calculate the non-equilibrium steady states. Applications of the PTRE approach to problems such as exciton diffusion, heat transport and light-harvesting energy transfer are presented. National Science Foundation (U.S.) (Grant CHE- 1112825) 2017-02-15T14:53:51Z 2017-03-01T16:14:48Z 2016-05 2015-10 2017-02-02T15:21:09Z Article http://purl.org/eprint/type/JournalArticle 2095-0462 2095-0470 http://hdl.handle.net/1721.1/106934 Xu, Dazhi, and Jianshu Cao. “Non-Canonical Distribution and Non-Equilibrium Transport beyond Weak System-Bath Coupling Regime: A Polaron Transformation Approach.” Frontiers of Physics 11.4 (2016): n. pag. https://orcid.org/0000-0002-5787-6615 https://orcid.org/0000-0001-7616-7809 en http://dx.doi.org/10.1007/s11467-016-0540-2 Frontiers of Physics Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Higher Education Press and Springer-Verlag Berlin Heidelberg application/pdf Higher Education Press Higher Education Press |
| spellingShingle | Xu, Dazhi Cao, Jianshu Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title | Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title_full | Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title_fullStr | Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title_full_unstemmed | Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title_short | Non-canonical distribution and non-equilibrium transport beyond weak system-bath coupling regime: A polaron transformation approach |
| title_sort | non canonical distribution and non equilibrium transport beyond weak system bath coupling regime a polaron transformation approach |
| url | http://hdl.handle.net/1721.1/106934 https://orcid.org/0000-0002-5787-6615 https://orcid.org/0000-0001-7616-7809 |
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