Cavity nonlinear optics with few photons and ultracold quantum particles

A. Vukics, Wolfgang Niedenzu, Helmut Ritsch

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The light force on particles trapped in the field of a high- Q cavity mode depends on the quantum state of field and particle. Different photon numbers generate different optical potentials and different motional states induce different field evolution. Even for negligible internal particle excitation, which yields linear polarizability, the quantum character of particle motion generates nonlinear field dynamics. We derive a corresponding effective field Hamiltonian containing all the powers of the photon number operator, which predicts nonlinear phase shifts and squeezing even at the few-photon level. Simulations of the full particle-field dynamics confirm this and show significant particle-field entanglement.

Original languageEnglish
Article number013828
JournalPhysical Review A
Volume79
Issue number1
DOIs
Publication statusPublished - Jan 5 2009

Fingerprint

nonlinear optics
cavities
photons
trapped particles
particle motion
compressing
Q factors
phase shift
operators
excitation
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Cavity nonlinear optics with few photons and ultracold quantum particles. / Vukics, A.; Niedenzu, Wolfgang; Ritsch, Helmut.

In: Physical Review A, Vol. 79, No. 1, 013828, 05.01.2009.

Research output: Contribution to journalArticle

Vukics, A. ; Niedenzu, Wolfgang ; Ritsch, Helmut. / Cavity nonlinear optics with few photons and ultracold quantum particles. In: Physical Review A. 2009 ; Vol. 79, No. 1.
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