2026-06-28T20:32:55Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/456312023-09-07T20:04:18Zcom_20.500.14352_14col_20.500.14352_21

A Beyond Mean Field study of Bose gases in a double-well potential with a Feshbach resonance Pérez Fernández, P. Relaño Pérez, Armando Dukelsky, J. Arias, J. M. The Bose-Hubbard model coupled to a Feshbach resonance is studied. Quantum phase transitions are analyzed within a beyond mean field framework in order to get finite size corrections to the simple mean field approach. Analytical results for the ground state energy and the first few energy gaps are presented. 2023-06-20T05:47:51Z 2023-06-20T05:47:51Z 2023-06-20T05:47:51Z 2013 book part https://hdl.handle.net/20.500.14352/45631 XXXX-XXXX 10.1063/1.4810840 eng AIP Conference Proceedongs open access American Institute of Physics (AIP)