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arXiv · 0804.2610

Phase diagram and binding energy of interacting Bose gases

M. Männel·K. Morawetz·M. Schreiber·P. Lipavský
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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.

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M. Männel, K. Morawetz, M. Schreiber, P. Lipavský. 2008-06-11. Phase diagram and binding energy of interacting Bose gases. https://doi.org/10.1103/physrevb.78.054508

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