Collective excitations and instability of an optical lattice due to unbalanced pumping

J. K. Asbóth, H. Ritsch, P. Domokos

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We solve self-consistently the coupled equations of motion for trapped particles and the field of a one-dimensional optical lattice. Optomechanical coupling creates long-range interaction between the particles, whose nature depends crucially on the relative power of the pump beams. For asymmetric pumping, traveling density wavelike collective oscillations arise in the lattice, even in the overdamped limit. By increasing the lattice size or pump asymmetry, these waves can destabilize the lattice.

Original languageEnglish
Article number203008
JournalPhysical review letters
Volume98
Issue number20
DOIs
Publication statusPublished - May 18 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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