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cond-mat.stat-mech2009★ 32 cited
Rigorous Upper Bound on the Critical Temperature of Dilute Bose Gases
Robert Seiringer, Daniel Ueltschi
We prove exponential decay of the off-diagonal correlation function in the two-dimensional homogeneous Bose gas when a^2 ρis small and the temperature T satisfies T > 4 πρ/ \ln |\l…
cond-mat.stat-mech2007★ 2 cited
The model of interacting spatial permutations and its relation to the Bose gas
Daniel Ueltschi
The model of spatial permutations is related to the Feynman-Kac representation of the Bose gas. The transition to infinite cycles corresponds to Bose-Einstein condensation. We revi…