Mean field loops versus quantum anti-crossing nets in trapped Bose-Einstein condensates
Anno: 2002
Autori: Karkuszewski Z.P., Sacha K., Smerzi A.
Affiliazione autori: Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA; Jagiellonian Univ, Inst Fizyki, PL-30059 Krakow, Poland; Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
Abstract: We study a Bose-Einstein condensate trapped in an asymmetric double well potential. Solutions of the time-independent Gross-Pitaevskii equation reveal intrinsic loops in the energy (or chemical potential) level behavior when the shape of the potential is varied. We investigate the corresponding behavior of the quantum (many-body) energy levels. Applying the two-mode approximation to the bosonic field operators, we show that the quantum energy levels create an anti-crossing net inside the region bounded by the loop of the mean field solution.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D
Volume: 21 (3) Da Pagina: 251 A: 254
Parole chiavi: Coherent Oscillations; Double-well; Gas; Interference; ArraysDOI: 10.1140/epjd/e2002-00229-5Citazioni: 24dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
