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Cavity molecular dynamics simulations of liquid water under vibrational ultrastrong coupling

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States); University fo Pennsylvania, Department of Chemistry
  2. Univ. of Pennsylvania, Philadelphia, PA (United States)
  3. Univ. of Pennsylvania, Philadelphia, PA (United States); Tel Aviv Univ., Ramat Aviv (Israel)
We simulate vibrational strong coupling (VSC) and vibrational ultrastrong coupling (V-USC) for liquid water with classical molecular dynamics simulations. When the cavity modes are resonantly coupled to the O–H stretch mode of liquid water, the infrared spectrum shows asymmetric Rabi splitting. The lower polariton (LP) may be suppressed or enhanced relative to the upper polariton (UP) depending on the frequency of the cavity mode. Furthermore, although the static properties and the translational diffusion of water are not changed under VSC or V-USC, we do find the modification of the orientational autocorrelation function of H2O molecules especially under V-USC, which could play a role in ground-state chemistry.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
Israel–US Binational Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; Vagelos Institute for Energy Science and Technology
Grant/Contract Number:
AC02-05CH11231; SC0019397
OSTI ID:
1647756
Alternate ID(s):
OSTI ID: 1648119
OSTI ID: 1656850
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 31 Vol. 117; ISSN 1091-6490; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Microcavity phonon polaritons from weak to ultrastrong phonon-photon coupling text January 2021