Atomic probe wigner tomography of a nanomechanical system

Swati Singh, Pierre Meystre

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

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
Volume81
Issue number4
DOIs
StatePublished - Apr 27 2010

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tomography
probes
resonators
oscillators
ground state
characteristic equations
atoms
detectors
interactions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Atomic probe wigner tomography of a nanomechanical system. / Singh, Swati; Meystre, Pierre.

In: Physical Review A, Vol. 81, No. 4, 041804, 27.04.2010.

Research output: Contribution to journalArticle

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