The exact time-dependent potential energy surface driving the nuclear dynamics was recently shown to be a useful tool to understand and interpret the coupling of nuclei, electrons, and photons in cavity settings. Here, we provide a detailed analysis of its structure for exactly solvable systems that model two phenomena: cavity-induced suppression of proton-coupled electron-transfer and its dependence on the initial state, and cavity-induced electronic excitation. We demonstrate the inadequacy of simply using a weighted average of polaritonic surfaces to determine the dynamics. Such a weighted average misses a crucial term that redistributes energy between the nuclear and the polaritonic systems, and this term can in fact become a predominant term in determining the nuclear dynamics when several polaritonic surfaces are involved. Evolving an ensemble of classical trajectories on the exact potential energy surface reproduces the nuclear wavepacket quite accurately, while evolving on the weighted polaritonic surface fails after a short period of time. The implications and prospects for application of mixed quantum-classical methods based on this surface are discussed.
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7 January 2021
Research Article|
January 06 2021
Case studies of the time-dependent potential energy surface for dynamics in cavities
Special Collection:
Polariton Chemistry: Molecules in Cavities and Plasmonic Media
Phillip Martinez;
Phillip Martinez
1
Department of Physics and Astronomy, Hunter College of the City University of New York
, 695 Park Avenue, New York, New York 10065, USA
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Bart Rosenzweig;
Bart Rosenzweig
1
Department of Physics and Astronomy, Hunter College of the City University of New York
, 695 Park Avenue, New York, New York 10065, USA
2
Department of Mathematics and Statistics, Hunter College of the City University of New York
, 695 Park Avenue, New York, New York 10065, USA
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Norah M. Hoffmann
;
Norah M. Hoffmann
a)
3
Department of Physics, Rutgers University
, Newark, New Jersey 07102, USA
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Lionel Lacombe
;
Lionel Lacombe
3
Department of Physics, Rutgers University
, Newark, New Jersey 07102, USA
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Neepa T. Maitra
Neepa T. Maitra
b)
3
Department of Physics, Rutgers University
, Newark, New Jersey 07102, USA
b)Author to whom correspondence should be addressed: [email protected]
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a)
Present address: Department of Chemistry, Columbia University, New York, New York 10027 USA.
b)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the JCP Special Topic on Polariton Chemistry: Molecules in Cavities and Plasmonic Media.
J. Chem. Phys. 154, 014102 (2021)
Article history
Received:
October 15 2020
Accepted:
December 10 2020
Citation
Phillip Martinez, Bart Rosenzweig, Norah M. Hoffmann, Lionel Lacombe, Neepa T. Maitra; Case studies of the time-dependent potential energy surface for dynamics in cavities. J. Chem. Phys. 7 January 2021; 154 (1): 014102. https://doi.org/10.1063/5.0033386
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