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Title: Electronic friction in interacting systems

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.5095425· OSTI ID:1510264

We consider the effects of strong light-matter interaction on electronic friction in molecular junctions within the generic model of a single molecule nanocavity junction. Results of the Hubbard nonequilibrium Green function (NEGF) simulations are compared with mean-field NEGF and generalized Head-Gordon and Tully (HGT) approaches. Mean-field NEGF is shown to fail qualitatively at strong intrasystem interactions, while accuracy of the generalized HGT results is restricted to situations of well separated intramolecular excitations when bath induced coherences are negligible. Numerical results show effects of bias and cavity mode pumping on electronic friction. Here, we demonstrate nonmonotonic behavior of the friction on the bias and intensity of the pumping field and indicate possibility of engineering friction control in single molecule junctions.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0018201
OSTI ID:
1510264
Alternate ID(s):
OSTI ID: 1510162
Journal Information:
Journal of Chemical Physics, Vol. 150, Issue 17; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (2)

Special topic on dynamics of open quantum systems journal January 2020
Nonadiabatic dynamics at metal surfaces: fewest switches surface hopping with electronic relaxation preprint January 2020