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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 22 — Oct. 25, 2010
  • pp: 23016–23023

Strong nonlinear coupling between an ultracold atomic ensemble and a nanomechanical oscillator

Gang Chen, Yongping Zhang, Liantuan Xiao, J.-Q. Liang, and Suotang Jia  »View Author Affiliations

Optics Express, Vol. 18, Issue 22, pp. 23016-23023 (2010)

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A new type of collective nonlinear coupling is presented via the indirect interaction between an ultracold atomic ensemble and a nanomechanical oscillator. More intriguingly, its interaction strength is enhanced largely with a factor of the atomic number, and thus, reaches a strong coupling regime within current experimental parameters. For the large atomic number, this obtained nonlinear coupling describes the interaction between the phonon and a pair of quasiparticle. Physically, this pair of quasiparticle is excited from the ultracold atomic ensemble when a phonon is emitted and vice versa. Based on these collective excitations, the nonlinear optical processes with the χ(2) term are simulated successfully.

© 2010 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(020.1475) Atomic and molecular physics : Bose-Einstein condensates

ToC Category:
Atomic and Molecular Physics

Original Manuscript: September 8, 2010
Revised Manuscript: October 4, 2010
Manuscript Accepted: October 4, 2010
Published: October 15, 2010

Gang Chen, Yongping Zhang, Liantuan Xiao, J. -Q. Liang, and Suotang Jia, "Strong nonlinear coupling between an ultracold atomic ensemble and a nanomechanical oscillator," Opt. Express 18, 23016-23023 (2010)

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