Antibunching in an optomechanical oscillator

H. Seok, Ewan M Wright

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16 Scopus citations


We theoretically analyze antibunching of the phonon field in an optomechanical oscillator employing the membrane-in-the-middle geometry. More specifically, a single-mode mechanical oscillator is quadratically coupled to a single-mode cavity field in the regime in which the cavity dissipation is a dominant source of damping, and adiabatic elimination of the cavity field leads to an effective cubic nonlinearity for the mechanics. We show analytically in the weak-coupling regime that the mechanics displays a chaotic phonon field for small optomechanical cooperativity, whereas an antibunched single-phonon field appears for large optomechanical cooperativity. This opens the door to control of the second-order correlation function of a mechanical oscillator in the weak-coupling regime.

Original languageEnglish (US)
Article number053844
JournalPhysical Review A
Issue number5
Publication statusPublished - May 17 2017


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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