Physical Review X (Dec 2020)

Coupled Cluster Theory for Molecular Polaritons: Changing Ground and Excited States

  • Tor S. Haugland,
  • Enrico Ronca,
  • Eirik F. Kjønstad,
  • Angel Rubio,
  • Henrik Koch

DOI
https://doi.org/10.1103/PhysRevX.10.041043
Journal volume & issue
Vol. 10, no. 4
p. 041043

Abstract

Read online Read online

We present an ab initio correlated approach to study molecules that interact strongly with quantum fields in an optical cavity. Quantum electrodynamics coupled cluster theory provides a nonperturbative description of cavity-induced effects in ground and excited states. Using this theory, we show how quantum fields can be used to manipulate charge transfer and photochemical properties of molecules. We propose a strategy to lift electronic degeneracies and induce modifications in the ground-state potential energy surface close to a conical intersection.