Polaron-Polariton-Assisted Thermally Activated Superradiance
Phys. Rev. Lett. 136, 238001 – Published 9 June, 2026
DOI: https://doi.org/10.1103/hs3s-j4yp
Abstract
We predict an anomalous thermally activated superradiance in molecular aggregates within polaritonic environments. In contrast to free space, the collective emission is enhanced when either the exciton-phonon coupling or the temperature increases. This counterintuitive phenomenon is captured by a microscopic theory that combines macroscopic quantum electrodynamics with a modified polaron quantum master equation approach, revealing a nontrivial interplay among excitons, phonons, and polaritons.
