Condensate fragmentation in a new exactly solvable model for confined bosons.
Based on Richardson's exact solution of the multilevel pairing model we derive a new class of exactly solvable models for the finite boson system. As an example we solve a particular Hamiltonian which displays a transition to a fragmented condensate for repulsive pairing interaction.
Dukelsky
J
J
Instituto de Estructura de la Materia, C.S.I.C., Madrid, Spain.
Schuck
P
P