Pregled bibliografske jedinice broj: 1009720
Localization of Bose-Einstein condensates in optical lattices
Localization of Bose-Einstein condensates in optical lattices // Open Physics, 9 (2011), 5; 1248, 7 doi:10.2478/s11534-011-0035-2 (međunarodna recenzija, članak, ostalo)
CROSBI ID: 1009720 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Localization of Bose-Einstein condensates in optical lattices
Autori
Franzosi, Roberto ; Giampaolo, Salvatore ; Illuminati, Fabrizio ; Livi, Roberto ; Oppo, Gian-Luca ; Politi, Antonio
Izvornik
Open Physics (1895-1082) 9
(2011), 5;
1248, 7
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo
Ključne riječi
localization
Sažetak
The dynamics of repulsive bosons condensed in an optical lattice is effectively described by the Bose-Hubbard model. The classical limit of this model, reproduces the dynamics of Bose- Einstein condensates, in a periodic potential, and in the superfluid regime. Such dynamics is governed by a dis- crete nonlinear Schrödinger equation. Several papers, addressing the study of the discrete nonlinear Schrödinger dynamics, have predicted the spontaneous generation of (classical) breathers in coupled con- densates. In the present contribute, we shall focus on localized solutions (quantum breathers) of the full Bose-Hubbard model. We will show that solutions exponentially localized in space and periodic in time exist also in absence of randomness. Thus, this kind of states, reproduce a novel quantum localization phenomenon due to the interplay between bounded energy spectrum and non-linearity.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
