Cooling in the single-photon strong-coupling regime of cavity optomechanics

摘要

In this paper we discuss how red-sideband cooling is modified in thesingle-photon strong-coupling regime of cavity optomechanics where theradiation pressure of a single photon displaces the mechanical oscillator bymore than its zero-point uncertainty. Using Fermi's Golden rule we calculatethe transition rates induced by the optical drive without linearizing theoptomechanical interaction. In the resolved-sideband limit we findmultiple-phonon cooling resonances for strong single-photon coupling that leadto non-thermal steady states including the possibility of phonon anti-bunching.Our study generalizes the standard linear cooling theory.