2026-06-07T00:37:25Zhttps://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

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