RT Journal Article
T1 Expansion of matter waves in static and driven periodic potentials
A1 Creffield, Charles E.
A1 Sols Lucía, Fernando
A1 Ciampini, D.
A1 Morsch, O.
A1 Arimondo, E.
AB We study the nonequilibrium dynamics of cold atoms held in an optical lattice subjected to a periodic driving potential. The expansion of an initially confined atom cloud occurs in two phases: an initial quadratic expansion followed by a ballistic behavior at long times. Accounting for this gives a good description of recent experimental results and provides a robust method to extract the effective intersite tunneling from time-of-flight measurements.
PB American Physical Society
SN 1050-2947
YR 2014
FD 2014-01-27
LK https://hdl.handle.net/20.500.14352/34845
UL https://hdl.handle.net/20.500.14352/34845
LA eng
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NO ©2010 The American Physical Society.This research was supported by the Acción Integrada/ Azioni Integrate scheme (Spain/Italy). The authors also acknowledge support from the Spanish MICINN through Grant No. FIS-2007-65723 and the Ramón y Cajal program (CEC).We thank H. Lignier, C. Sias,Y. Singh, and A. Zenesini for assistance with the experiments.
NO Accion Integrada/Azioni Integrate scheme (Spain/Italy)
NO MICINN, Spain
NO Ramon y Cajal program  (CEC)
DS Docta Complutense
RD 1 may 2024