Phase diagram and binding energy of interacting Bose gases
Phase diagram and binding energy of interacting Bose gases
Männel, M.; Morawetz, K.; Schreiber, M.; Lipavský, P.
Abstract
From the many-body T-matrix the condition for a medium-dependent bound state and its binding energy is derived for a homogeneous interacting Bose gas. This condition provides the critical line in the phase diagram in terms of the medium-dependent scattering length. Separating the Bose pole from the distribution function the influence of a Bose condensate is discussed and a thermal minimum of the critical scattering length is found.
Keywords: BEC; phase diagramm; interacting Bose gases; bound states
- Physical Review B 78(2008), 054508-1-054508-5
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