Observation of photon-assisted tunneling in optical lattices
Anno: 2008
Autori: Sias C., Lignier H., Singh Y.P., Zenesini A., Ciampini D., Morsch O., Arimondo E.
Affiliazione autori: CNR-INFM, Dipartimento di Fisica “E. Fermi,” Università di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy ; CNISM Unita Pisa, Pisa, Italy
Abstract: We have observed tunneling suppression and photon-assisted tunneling of Bose-Einstein condensates in an optical lattice subjected to a constant force plus a sinusoidal shaking. For a sufficiently large constant force, the ground energy levels of the lattice are shifted out of resonance and tunneling is suppressed; when the shaking is switched on, the levels are coupled by low-frequency photons and tunneling resumes. Our results agree well with theoretical predictions and demonstrate the usefulness of optical lattices for studying solid-state phenomena.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 100 (4) Da Pagina: 040404 A: 040404
Parole chiavi: Optical Lattices; Quantum tunneling; DOI: 10.1103/PhysRevLett.100.040404Citazioni: 205dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui