Squeezing of mechanical motion via qubit-assisted control

Marco G. Genoni*, Matteo Bina, Stefano Olivares, Gabriele De Chiara, Mauro Paternostro

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)
252 Downloads (Pure)

Abstract

We propose a feedback control mechanism for the squeezing of the phononic mode of a mechanical oscillator. We show how, under appropriate working conditions, a simple adiabatic approach is able to induce mechanical squeezing. We then go beyond the limitations of such a working point and demonstrate the stationary squeezing induced by using repeated measurements and reinitialization of the state of a two-level system ancilla coupled to the oscillator. Our nonadaptive feedback loop offers interesting possibilities for quantum state engineering and steering in open-system scenarios.

Original languageEnglish
Article number013034
Number of pages9
JournalNew Journal of Physics
Volume17
DOIs
Publication statusPublished - Jan 2015

Keywords

  • squeezing
  • mechanical systems
  • quantum control
  • feedback
  • QUANTUM GROUND-STATE
  • NANOMECHANICAL OSCILLATOR
  • ENTANGLEMENT
  • CIRCUIT

Cite this