Science & Technology

Speaker: Professor Yijing YAN

Institution: University of Science and Technology of China

Co-Hosted By: Professor Xiao-Yuan LI

 

Abstract

Dissipaton equation of motion (DEOM) [1,2] is a fundamental theory for open quantum systems, which explicitly treats both the reduced system and hybrid-bath (or solvation) dynamics. This is a second-quantization theory and generalizes the well-established HEOM formalism [3,4]. The latter is equivalent to the Feynman-Vernon influence functional path-integral dynamics [5], with the focus on the reduced system quantities only. Dissipatons are statistical quasi-particles that describe the influence of environments, as supported by the unified dissipaton algebra [1] and the dissipaton thermofield theories [6]. These enable the accurate DEOM evaluations on such as quantum transport [7], noise spectrum [2], and non-equilibrium thermodynamics problems [8], in strongly correlated fermionic and/or bosonic systems.

References

  1. Y. Wang and Y. J. Yan, J. Chem. Phys. 157, 170901 (2022); Y. J. Yan, J. Chem. Phys. 140, 054105 (2014); Y. J. Yan, J. S. Jin, R. X. Xu, and X. Zheng, Front. Phys. 11, 110306 (2016); Y. Wang, R. X. Xu, and Y. J. Yan, J. Chem. Phys. 152, 041102 (2020).
  2. J. S. Jin, S. K. Wang, X. Zheng, and Y. J. Yan, J. Chem. Phys. 142, 234108 (2015); H. D. Zhang, R. X. Xu, X. Zheng, and Y. J. Yan, Mol. Phys. 116, 780 (2018).
  3. Y. Tanimura, J. Phys. Soc. Jpn. 75, 082001 (2006); R. X. Xu, P. Cui, X. Q. Li, Y. Mo, and Y. J. Yan, J. Chem. Phys. 122, 041103 (2005).
  4. J. S. Jin, X. Zheng, and Y. J. Yan, J. Chem. Phys. 128, 234703 (2008).
  5. R. P. Feynman and F. L. Vernon, Jr. Ann. Phys. 24, 118-173 (1963).
  6. Yao Wang, Zi-Hao Chen, R. X. Xu, X. Zheng, and Y.J. Yan, J. Chem. Phys. 157, 044102 (2022) ; P. L. Du, Y. Wang, R. X. Xu, and Y. J. Yan, J. Chem. Phys. 152, 034102 (2020).
  7. L. Z. Ye, X. L. Wang, D. Hou, R. X. Xu, X. Zheng, and Y. J. Yan, WIREs Comp. Mol. Sci. (2016); X. L. Wang, Dong Hou, X. Zheng, and Y. J. Yan, J. Chem. Phys. 144, 034101 (2016); X.L. Wang, L.Q. Yang, L. Z. Ye, X. Zheng, and Y. J. Yan, J. Phys. Chem. Letts. 9, 2418 (2018).
  8. Hong Gong, Yao Wang, X. Zheng, R. X. Xu, and Y. J. Yan, J. Chem. Phys. 157, 054109 (2022); Hong Gong et al., J. Chem. Phys. 153, 154111 (2020); ibid., 153, 214115 (2020).
13 Feb 2023
4:30pm - 6:00pm
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Where
Room 4472, 4/F, Lifts 25/26, Academic Building, HKUST
Speakers/Performers
Organizer(S)
Department of Chemistry
Contact/Enquiries
chivy@ust.hk
Payment Details
Audience
PG students, Faculty and staff
Language(s)
English
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