Polaron Physics in Optical Lattices

Martin Bruderer, Alexander Klein, Stephen R. Clark, Dieter Jaksch

Research output: Contribution to journalArticlepeer-review

129 Citations (SciVal)
148 Downloads (Pure)


We investigate the effects of a nearly uniform Bose-Einstein condensate (BEC) on the properties of immersed trapped impurity atoms. Using a weak-coupling expansion in the BEC-impurity interaction strength, we derive a model describing polarons, i.e., impurities dressed by a coherent state of Bogoliubov phonons, and apply it to ultracold bosonic atoms in an optical lattice. We show that, with increasing BEC temperature, the transport properties of the impurities change from coherent to diffusive. Furthermore, stable polaron clusters are formed via a phonon-mediated off-site attraction.
Original languageEnglish
Article number011605(R)
Number of pages4
JournalPhysical Review A: Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 13 Jul 2007


  • quant-ph


Dive into the research topics of 'Polaron Physics in Optical Lattices'. Together they form a unique fingerprint.

Cite this