Parametric amplification and back-action noise squeezing by a qubit-coupled nanoresonator

Junho Suh, Matthew D. Lahaye, Pierre M. Echternach, Keith C. Schwab, Michael L. Roukes

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

We demonstrate the parametric amplification and noise squeezing of nanomechanical motion utilizing dispersive coupling to a Cooper-pair box qubit. By modulating the qubit bias and resulting mechanical resonance shift, we achieve gain of 30 dB and noise squeezing of 4 dB. This qubit-mediated effect is 3000 times more effective than that resulting from the weak nonlinearity of capacitance to a nearby electrode. This technique may be used to prepare nanomechanical squeezed states.

Original languageEnglish (US)
Pages (from-to)3990-3994
Number of pages5
JournalNano Letters
Volume10
Issue number10
DOIs
StatePublished - Oct 13 2010

Keywords

  • Cooper-pair-box qubit
  • NEMS
  • dispersive coupling
  • noise squeezing
  • parametric amplification
  • squeezed state

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Parametric amplification and back-action noise squeezing by a qubit-coupled nanoresonator'. Together they form a unique fingerprint.

  • Cite this

    Suh, J., Lahaye, M. D., Echternach, P. M., Schwab, K. C., & Roukes, M. L. (2010). Parametric amplification and back-action noise squeezing by a qubit-coupled nanoresonator. Nano Letters, 10(10), 3990-3994. https://doi.org/10.1021/nl101844r