Dr Giuliano Chiriacò

Dissipative dynamics and thermal Purcell effect in cryogenic cavities

In recent years, there has been significant interest in using optical cavities to manipulate the properties and phases of embedded quantum materials. Through the Purcell effect, a cavity alters the photon phase space and thus the rate of electromagnetic transitions within the material, affecting the exchange rate of heat radiation with the photon environment. This effect is compared with typical energy dissipation processes,showing that it may dramatically impact the temperature of a material coupled to the cavity. Additionally, the temperature of the photons inside the cavities is studied using a Lindblad formalism that accounts for different temperatures of the environment and of the cavity mirrors.