Self-similar scaling in the coherent dynamics of ultracold atoms
Authors: Artoni M., La Rocca G., Ferrari G.
Autors Affiliation: Department of Chemistry and Physics of Materials, University of Brescia and CNR–INFM, Brescia 25123, Italy; LENS–Polo Scientiﬁco, Sesto Fiorentino 50019, Italy; Scuola Normale Superiore and CNISM, Pisa 56126, Italy; INO-CNR, Sesto Fiorentino 50019, Italy
Abstract: Well-resolved and long-lived atomic Bloch oscillations provide straightforward access to intriguing yet fascinating self-similar patterns. These could be observed in the quasienergy spectra of ultracold atomic wave packets subject to gravity in a driven optical lattice potential. As for the Hofstadter butterflylike energy spectra of crystal electrons in a uniform magnetic field, these atomic quasienergy spectra are shown to originate from commensurability between the Bloch oscillations period and the lattice driving period.
Journal/Review: PHYSICAL REVIEW A
Volume: 80 (2) Pages from: 021604 to: 021604
More Information: Fruitful discussions with F. Bassani, R. Sapienza, A. Alberti, M. Inguscio, and M. Chiofalo are gratefully acknowledged as well as financial support from the MIUR (Prin 2006-021037 and Italy-Spain Azione Integrata IT09L244H5) as well as the 2008-09 CRUI-British Council Partnership Program.DOI: 10.1103/PhysRevA.80.021604Citations: 3data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-12-04References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here