Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 154, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0038330
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Funding
- National Science Foundation CAREER Award [CHE-1845747]
- Enabling Quantum Leap in Chemistry program [CHE-1836546]
- Cottrell Scholar Award (a program by Research Corporation for Science Advancement)
- Arnold Weissberger Fellowship
- Elon Huntington Hooker Fellowship
- Esther M. Conwell Fellowship
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This study demonstrates the use of ring polymer representation to investigate the radiation field inside an optical cavity, showing its ability to accurately calculate rate constants compared to Fermi's golden rule. Compared to Fock state description, the RP quantization significantly reduces computational costs and provides a more accurate description of the system.
We use the ring polymer (RP) representation to quantize the radiation field inside an optical cavity to investigate polariton quantum dynamics. Using a charge transfer model coupled to an optical cavity, we demonstrate that the RP quantization of the photon field provides accurate rate constants of the polariton mediated electron transfer reaction compared to Fermi's golden rule. Because RP quantization uses extended phase space to describe the photon field, it significantly reduces the computational costs compared to the commonly used Fock state description of the radiation field. Compared to the other quasi-classical descriptions of the photon field, such as the classical Wigner based mean-field Ehrenfest model, the RP representation provides a much more accurate description of the polaritonic quantum dynamics because it alleviates the potential quantum distribution leakage problem associated with the photonic degrees of freedom (DOF). This work demonstrates the possibility of using the ring polymer description to treat the quantized radiation field in polariton chemistry, offering an accurate and efficient approach for future investigations in cavity quantum electrodynamics.
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