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math-ph2025
Lieb-Robinson bounds, automorphic equivalence and LPPL for long-range interacting fermions
Stefan Teufel, Tom Wessel
We prove a Lieb-Robinson bound for lattice fermion models with polynomially decaying interactions, which can be used to show the locality of the quasi-local inverse Liouvillian. Th…
math-ph2025
From decay of correlations to locality and stability of the Gibbs state
Ãngela Capel, Massimo Moscolari, Stefan Teufel +1
We show that whenever the Gibbs state of a quantum spin system satisfies decay of correlations, then it is stable, in the sense that local perturbations affect the Gibbs state only…
math-ph2024
Equality of magnetization and edge current for interacting lattice fermions at positive temperature
Jonas Lampart, Massimo Moscolari, Stefan Teufel +1
We prove that the magnetization is equal to the edge current in the thermodynamic limit for a large class of models of lattice fermions with finite-range interactions satisfying lo…