FRG-DFT benchmark on Bose-Hubbard model recovers exact thermodynamics only when the equal-time contact subtraction is retained and a maximum-entropy closure preserves statistical consistency of correlators.
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Functional methods for quantum thermodynamics
FRG-DFT benchmark on Bose-Hubbard model recovers exact thermodynamics only when the equal-time contact subtraction is retained and a maximum-entropy closure preserves statistical consistency of correlators.