We study the time evolution of a Bose–Einstein condensate in an accelerated optical lattice. When the condensate has a narrow quasi-momentum distribution and the optical lattice is shallow, the survival probability in the ground band exhibits a step-like structure. In this regime, we establish a connection between the wave-function renormalization parameter Z and the phenomenon of resonantly enhanced tunneling.

Unearthing wave-function renormalization effects in the time evolution of a Bose-Einstein condensate

ARIMONDO, ENNIO;CIAMPINI, DONATELLA;MORSCH, OLIVER
2013-01-01

Abstract

We study the time evolution of a Bose–Einstein condensate in an accelerated optical lattice. When the condensate has a narrow quasi-momentum distribution and the optical lattice is shallow, the survival probability in the ground band exhibits a step-like structure. In this regime, we establish a connection between the wave-function renormalization parameter Z and the phenomenon of resonantly enhanced tunneling.
2013
Facchi, P.; Pascazio, S.; Pepe, F. V.; Arimondo, Ennio; Ciampini, Donatella; Morsch, Oliver
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/237882
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact