Atomic probe wigner tomography of a nanomechanical system

Swati Singh, Pierre Meystre

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We propose a scheme to measure the quantum state of a nanomechanical oscillator cooled near its ground state of vibrational motion. This is an extension of the nonlinear atomic homodyning technique scheme first developed to measure the intracavity field in a micromaser. It involves the use of a detector atom that is simultaneously coupled to the resonator via a magnetic interaction and to (classical) optical fields via a Raman transition. We show that the probability for the atom to be found in the ground state is a direct measure of the Wigner characteristic function of the nanomechanical oscillator. We also investigate the back-action effect of this destructive measurement on the state of the resonator.

Original languageEnglish (US)
Article number041804
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
StatePublished - Apr 27 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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