Quantum coherent atomic tunneling between two trapped Bose-Einstein condensates
Anno: 1997
Autori: Smerzi A., Fantoni S., Giovanazzi S., Shenoy S.R.
Affiliazione autori: Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy; INFM, I-34014 Trieste, Italy; Int Ctr Theoret Phys, I-34100 Trieste, Italy.
Abstract: We study the coherent atomic tunneling between two zero-temperature Bose-Einstein condensates (BEC) confined in a double-well magnetic trap, Two Gross-Pitaevskii equations For the self-interacting BEC amplitudes, coupled by a transfer matrix element, describe the dynamics in terms of the interwell phase difference anti population imbalance. In addition to the anharmonic generalization of the familiar ac Josephson effect and plasma oscillations occurring in superconductor junctions, the nonlinear BEC tunneling dynamics sustains a self-maintained population imbalance: a novel macroscopic quantum self-trapping effect.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 79 (25) Da Pagina: 4950 A: 4953
Parole chiavi: Collective Excitations; GasDOI: 10.1103/PhysRevLett.79.4950Citazioni: 1166dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
