Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath
An approach based on a non-Markovian time-convolutionless polaron master equation is used to probe the quantum dynamics of a chromophore-qubit in a super-Ohmic bath. Utilizing a measure of non-Markovianity based on dynamical fixed points, we study the effects of the environment temperature and the c...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106709 http://hdl.handle.net/10220/25128 |
| _version_ | 1826119701308112896 |
|---|---|
| author | Liu, Jing Sun, Kewei Wang, Xiaoguang Zhao, Yang |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Liu, Jing Sun, Kewei Wang, Xiaoguang Zhao, Yang |
| author_sort | Liu, Jing |
| collection | NTU |
| description | An approach based on a non-Markovian time-convolutionless polaron master equation is used to probe the quantum dynamics of a chromophore-qubit in a super-Ohmic bath. Utilizing a measure of non-Markovianity based on dynamical fixed points, we study the effects of the environment temperature and the coupling strength on the non-Markovian behavior of the chromophore in a super-Ohmic bath. It is found that an increase in the temperature results in a reduction in the backflow information from the environment to the chromophore, and therefore, a suppression of non-Markovianity. In the weak coupling regime, increasing coupling strength will enhance the non-Markovianity, while the effect is reversed in the strong coupling regime. |
| first_indexed | 2024-10-01T05:04:23Z |
| format | Journal Article |
| id | ntu-10356/106709 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:04:23Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1067092023-07-14T15:46:12Z Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath Liu, Jing Sun, Kewei Wang, Xiaoguang Zhao, Yang School of Materials Science & Engineering DRNTU::Science::Physics::Atomic physics::Quantum theory An approach based on a non-Markovian time-convolutionless polaron master equation is used to probe the quantum dynamics of a chromophore-qubit in a super-Ohmic bath. Utilizing a measure of non-Markovianity based on dynamical fixed points, we study the effects of the environment temperature and the coupling strength on the non-Markovian behavior of the chromophore in a super-Ohmic bath. It is found that an increase in the temperature results in a reduction in the backflow information from the environment to the chromophore, and therefore, a suppression of non-Markovianity. In the weak coupling regime, increasing coupling strength will enhance the non-Markovianity, while the effect is reversed in the strong coupling regime. Accepted version 2015-02-27T01:27:23Z 2019-12-06T22:16:36Z 2015-02-27T01:27:23Z 2019-12-06T22:16:36Z 2015 2015 Journal Article Liu, J., Sun, K., Wang, X., & Zhao, Y. (2015). Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath. Physical chemistry chemical physics, in press. https://hdl.handle.net/10356/106709 http://hdl.handle.net/10220/25128 10.1039/C4CP04922E en Physical chemistry chemical physics © 2015 The Authors. This is the author created version of a work that has been peer reviewed and accepted for publication in Physical Chemistry Chemical Physics, published by Royal Society of Chemistry on behalf of The Authors. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [Article URL/DOI: http://dx.doi.org/10.1039/C4CP04922E]. 11 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Quantum theory Liu, Jing Sun, Kewei Wang, Xiaoguang Zhao, Yang Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title | Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title_full | Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title_fullStr | Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title_full_unstemmed | Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title_short | Quantifying non-Markovianity for a chromophore-qubit pair in a super-Ohmic bath |
| title_sort | quantifying non markovianity for a chromophore qubit pair in a super ohmic bath |
| topic | DRNTU::Science::Physics::Atomic physics::Quantum theory |
| url | https://hdl.handle.net/10356/106709 http://hdl.handle.net/10220/25128 |
| work_keys_str_mv | AT liujing quantifyingnonmarkovianityforachromophorequbitpairinasuperohmicbath AT sunkewei quantifyingnonmarkovianityforachromophorequbitpairinasuperohmicbath AT wangxiaoguang quantifyingnonmarkovianityforachromophorequbitpairinasuperohmicbath AT zhaoyang quantifyingnonmarkovianityforachromophorequbitpairinasuperohmicbath |