Density-dependent synthetic magnetism for ultracold atoms in optical lattices

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dc.identifier.uri Greschner, Sebastian Huerga, D. Sun, G. Poletti, D. Santos, Luis 2017-10-20T09:05:10Z 2017-10-20T09:05:10Z 2015
dc.identifier.citation Greschner, S.; Huerga, D.; Sun, G.; Poletti, D.; Santos, L.: Density-dependent synthetic magnetism for ultracold atoms in optical lattices. In: Physical Review B - Condensed Matter and Materials Physics 92 (2015), Nr. 11, No. 115120. DOI:
dc.description.abstract Raman-assisted hopping can allow for the creation of density-dependent synthetic magnetism for cold neutral gases in optical lattices. We show that the density-dependent fields lead to a nontrivial interplay between density modulations and chirality. This interplay results in a rich physics for atoms in two-leg ladders, characterized by a density-driven Meissner-superfluid to vortex-superfluid transition, and a nontrivial dependence of the density imbalance between the legs. Density-dependent fields also lead to intriguing physics in square lattices. In particular, it leads to a density-driven transition between a nonchiral and a chiral superfluid, both characterized by nontrivial charge density-wave amplitude. We finally show how the physics due to the density-dependent fields may be easily probed in experiments by monitoring the expansion of doublons and holes in a Mott insulator, which presents a remarkable dependence on quantum fluctuations. © 2015 American Physical Society. eng
dc.language.iso eng
dc.publisher College Park, MD : American Physical Society
dc.relation.ispartofseries Physical Review B 92 (2015), Nr. 11
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject.ddc 530 | Physik ger
dc.title Density-dependent synthetic magnetism for ultracold atoms in optical lattices eng
dc.type Article
dc.type Text
dc.relation.issn 10980121
dc.bibliographicCitation.issue 11
dc.bibliographicCitation.volume 92
dc.bibliographicCitation.firstPage 115120
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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