Publikationsdatum:
2012-04-17
Beschreibung:
Author(s): T. A. Zaleski The excitations of strongly interacting bosons confined in a two-dimensional square lattice are studied. Using a combined Bogoliubov method and the quantum-rotor approach, the Hamiltonian of strongly interacting bosons is mapped onto the U (1) -phase action. This allows to calculate the momentum- and ... [Phys. Rev. A 85, 043611] Published Mon Apr 16, 2012
Schlagwort(e):
Matter waves and collective properties of cold atoms and molecules
Print ISSN:
1050-2947
Digitale ISSN:
1094-1622
Thema:
Physik