Back-action-free quantum optomechanics with negative-mass Bose-Einstein condensates

Keye Zhang, Pierre Meystre, Weiping Zhang

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


We propose that the dispersion management of coherent atomic matter waves can be exploited to overcome quantum back-action in condensate-based optomechanical sensors. The effective mass of an atomic Bose-Einstein condensate modulated by an optical lattice can become negative, resulting in a negative-frequency optomechanical oscillator, a negative environment temperature, and optomechanical properties opposite to those of a positive-mass system. This enables a quantum-mechanics-free subsystem insulated from quantum back-action.

Original languageEnglish (US)
Article number043632
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
StatePublished - Oct 21 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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