Mechanism of Molecular Polariton Decoherence in the Collective Light-Matter Couplings Regime.

ABSTRACT: Molecular polaritons, the hybridization of electronic states in molecules with photonic excitation inside a cavity, play an important role in fundamental quantum science and technology. Understanding the decoherence mechanism of molecular polaritons is among the most significant fundamental questions. We theoretically demonstrate that hybridizing many molecular excitons in a cavity protects the overall quantum coherence from phonon-induced decoherence. The polariton coherence time can be prolonged up to 100 fs with a realistic collective Rabi splitting and quality factor at room temperature, compared to the typical electronic coherence time which is around 15 fs. Our numerically exact simulations and analytic theory suggest that the dominant decoherence mechanism is the population transfer

SUBMITTER: Chng BXK 

PROVIDER: S-EPMC11613686 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature