- Letter
Stationary current between hybrid vibrational polaritonic systems
Phys. Rev. B 108, L081404 – Published 8 August, 2023
DOI: https://doi.org/10.1103/PhysRevB.108.L081404
Abstract
A strong light-matter interaction and the resulting polaritons provide a promising knob to control energy and population transfer over long length scales. Yet, existing transfer studies have been exclusively limited to a single-cavity scenario. Little is known about whether multiple cavities can facilitate new control strategies. Here, we reveal that the interplay of cavity-cavity coherence and strong vibrational light-matter coupling can induce a stationary population current between two identical, weakly coupled hybrid vibrational polaritonic systems at thermal equilibrium. Exploiting Fermi's golden rule, we qualitatively identify that the current is mediated by transitions between vibrational polariton states belonging to different hybrid systems. Our results provide insights for realizing controllable long-distance population transfer utilizing coupled light-matter hybrid systems.
