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cond-mat.stat-mech2022★ 7 cited
Exact mean-field solution of a spin chain with short-range and long-range interactions
Etienne Granet
We consider the transverse field Ising model with additional all-to-all interactions between the spins. We show that a mean-field treatment of this model becomes exact in the therm…
quant-ph2022
Regularization of energy-dependent pointlike interactions in 1D quantum mechanics
Etienne Granet
We construct a family of hermitian potentials in 1D quantum mechanics that converges in the zero-range limit to a interaction with an energy-dependent coupling. It falls out of…