Chaotic behavior of three interacting vortices in a confined Bose-Einstein condensate

Nikos Kyriakopoulos, Vassilis Koukouloyannis, Charalampos Skokos, Panayotis G. Kevrekidis

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

10 Sitaatiot (Scopus)

Abstrakti

Motivated by recent experimental works, we investigate a system of vortex dynamics in an atomic Bose-Einstein condensate (BEC), consisting of three vortices, two of which have the same charge. These vortices are modeled as a system of point particles which possesses a Hamiltonian structure. This tripole system constitutes a prototypical model of vortices in BECs exhibiting chaos. By using the angular momentum integral of motion, we reduce the study of the system to the investigation of a two degree of freedom Hamiltonian model and acquire quantitative results about its chaotic behavior. Our investigation tool is the construction of scan maps by using the Smaller ALignment Index as a chaos indicator. Applying this approach to a large number of initial conditions, we manage to accurately and efficiently measure the extent of chaos in the model and its dependence on physically important parameters like the energy and the angular momentum of the system.

AlkuperäiskieliEnglanti
Artikkeli024410
Sivut1-12
JulkaisuCHAOS
Vuosikerta24
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 1 tammikuuta 2014
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki

Sukella tutkimusaiheisiin 'Chaotic behavior of three interacting vortices in a confined Bose-Einstein condensate'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä