articleProceedings of the National Academy of SciencesMar 8, 2017BRONZE OA

Atoms and molecules in cavities, from weak to strong coupling in quantum-electrodynamics (QED) chemistry

JFJohannes FlickMRMichael RuggenthalerHAHeiko AppelÁRÁngel Rubio

Universität Hamburg · Fritz Haber Institute of the Max Planck Society · +3 more institutions

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Abstract

In this work, we provide an overview of how well-established concepts in the fields of quantum chemistry and material sciences have to be adapted when the quantum nature of light becomes important in correlated matter-photon problems. We analyze model systems in optical cavities, where the matter-photon interaction is considered from the weak- to the strong-coupling limit and for individual photon modes as well as for the multimode case. We identify fundamental changes in Born-Oppenheimer surfaces, spectroscopic quantities, conical intersections, and efficiency for quantum control. We conclude by applying our recently developed quantum-electrodynamical density-functional theory to spontaneous emission and show…

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594
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37.69
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100%
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78
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Authors

4

Topics & keywords

Topics
Keywords
  • Photon
  • Physics
  • Coupling (piping)
  • Quantum
  • Cavity quantum electrodynamics
  • Quantum mechanics
  • Quantum chemistry
  • Open quantum system
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