Develops diagrammatic perturbation theory for free energies with fixed variance and applies it to complete the thermodynamic-limit free energy for a spin system while providing resummations for poorly sampled entropies.
A robust generalization of the legendre transform for qft.Journal of Physics A: Mathematical and Theoretical, 50(22):225201, may 2017
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Diagrammatics of free energies with fixed variance for high-dimensional data
Develops diagrammatic perturbation theory for free energies with fixed variance and applies it to complete the thermodynamic-limit free energy for a spin system while providing resummations for poorly sampled entropies.