Interactions destroy dynamical localization with strong and weak chaos
Abstract
Bose-Einstein condensates loaded into kicked optical lattices can be treated as quantum kicked-rotor systems. Noninteracting rotors show dynamical localization in momentum space. The experimentally tunable condensate interaction is included in a qualitative Gross-Pitaevskii-type model based on two-body interactions. We observe strong- and weak-chaos regimes of wave packet spreading in momentum space. In the intermediate strong-chaos regime the condensate energy grows as t(1/2). In the asymptotic weak-chaos case the growth crosses over into a t(1/3) law. The results do not depend on the details of the kicking. Copyright (C) EPLA, 2011
Source:
Europhysics Letters / EPL, 2011, 96, 3Funding / projects:
DOI: 10.1209/0295-5075/96/30004
ISSN: 0295-5075; 1286-4854
WoS: 000296538200004
Scopus: 2-s2.0-80055049946
Collections
Institution/Community
VinčaTY - JOUR AU - Gligorić, Goran AU - Bodyfelt, J. D. AU - Flach, Sergej PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4548 AB - Bose-Einstein condensates loaded into kicked optical lattices can be treated as quantum kicked-rotor systems. Noninteracting rotors show dynamical localization in momentum space. The experimentally tunable condensate interaction is included in a qualitative Gross-Pitaevskii-type model based on two-body interactions. We observe strong- and weak-chaos regimes of wave packet spreading in momentum space. In the intermediate strong-chaos regime the condensate energy grows as t(1/2). In the asymptotic weak-chaos case the growth crosses over into a t(1/3) law. The results do not depend on the details of the kicking. Copyright (C) EPLA, 2011 T2 - Europhysics Letters / EPL T1 - Interactions destroy dynamical localization with strong and weak chaos VL - 96 IS - 3 DO - 10.1209/0295-5075/96/30004 ER -
@article{ author = "Gligorić, Goran and Bodyfelt, J. D. and Flach, Sergej", year = "2011", abstract = "Bose-Einstein condensates loaded into kicked optical lattices can be treated as quantum kicked-rotor systems. Noninteracting rotors show dynamical localization in momentum space. The experimentally tunable condensate interaction is included in a qualitative Gross-Pitaevskii-type model based on two-body interactions. We observe strong- and weak-chaos regimes of wave packet spreading in momentum space. In the intermediate strong-chaos regime the condensate energy grows as t(1/2). In the asymptotic weak-chaos case the growth crosses over into a t(1/3) law. The results do not depend on the details of the kicking. Copyright (C) EPLA, 2011", journal = "Europhysics Letters / EPL", title = "Interactions destroy dynamical localization with strong and weak chaos", volume = "96", number = "3", doi = "10.1209/0295-5075/96/30004" }
Gligorić, G., Bodyfelt, J. D.,& Flach, S.. (2011). Interactions destroy dynamical localization with strong and weak chaos. in Europhysics Letters / EPL, 96(3). https://doi.org/10.1209/0295-5075/96/30004
Gligorić G, Bodyfelt JD, Flach S. Interactions destroy dynamical localization with strong and weak chaos. in Europhysics Letters / EPL. 2011;96(3). doi:10.1209/0295-5075/96/30004 .
Gligorić, Goran, Bodyfelt, J. D., Flach, Sergej, "Interactions destroy dynamical localization with strong and weak chaos" in Europhysics Letters / EPL, 96, no. 3 (2011), https://doi.org/10.1209/0295-5075/96/30004 . .