%0 Journal Article
%T Soluble model of Bose-atoms with two level internal structure: non-conventional Bose-Einstein condensation
%A M. Corgini
%A D.P. Sankovich
%J Condensed Matter Physics
%D 2010
%I Institute for Condensed Matter Physics
%X For a Bose atom system whose energy operator is diagonal in the so-called number operators and its ground state has an internal two-level structure with negative energies, exact expressions for the limit free canonical energy and pressure are obtained. The existence of non-conventional Bose-Einstein condensation has been also proved.
%K approximating Hamiltonian method
%K non-conventional Bose-Einstein condensation
%U http://dx.doi.org/10.5488/CMP.13.43003