Parametric amplification of matter waves in periodically translated optical lattices

N. Gemelke, E. Sarajlic, Y. Bidel, S. Hong, S. Chu

Research output: Contribution to journalArticlepeer-review

84 Scopus citations

Abstract

We observe the sudden growth of small classes of Bloch waves from atomic Bose-Einstein condensates held in periodically translated optical lattices. The effect is explained by narrowband parametric amplification of Bloch waves from noise, due to phase-matched scattering of atom pairs out of the condensate. Amplification occurs above a well-defined modulation threshold, described by dynamic shaping of single-particle band structure.

Original languageEnglish (US)
Article number170404
JournalPhysical review letters
Volume95
Issue number17
DOIs
StatePublished - Oct 21 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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