2026-06-07T01:37:48Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/348452024-09-03T15:20:49Zcom_20.500.14352_14col_20.500.14352_15

Expansion of matter waves in static and driven periodic potentials Creffield, Charles Sols Lucía, Fernando Ciampini, D. Morsch, O. Arimondo, E. 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. 2023-06-19T14:56:01Z 2023-06-19T14:56:01Z 2023-06-19T14:56:01Z 2014-01-27 journal article https://hdl.handle.net/20.500.14352/34845 1050-2947 10.1103/PhysRevA.82.035601 eng FIS-2007-65723 open access American Physical Society