The derivative-delta Fermi gas is a scale-anomalous system whose renormalized low-energy observables coincide with the standard delta-potential Fermi gas, with a power-law dimensional transmutation.
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Quantum anomaly and thermodynamics of one-dimensional fermions with antisymmetric two-body interactions
The derivative-delta Fermi gas is a scale-anomalous system whose renormalized low-energy observables coincide with the standard delta-potential Fermi gas, with a power-law dimensional transmutation.