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Krieg, Jan (author), Strassel, Dominik (author), Streib, S.D. (author), Eggert, Sebastian (author), Kopietz, Peter (author)
We use the functional renormalization group (FRG) to derive analytical expressions for thermodynamic observables (density, pressure, entropy, and compressibility) as well as for single-particle properties (wave-function renormalization and effective mass) of interacting bosons in two dimensions as a function of temperature T and chemical...
journal article 2017