178 citations · 981 across the 75 of their papers we have counts for
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math-ph2021★ 31 cited
On Lieb-Robinson bounds for the Bose-Hubbard model
Jérémy Faupin, Marius Lemm, Israel Michael Sigal
We consider the dynamics of the Bose-Hubbard model on general lattices and prove a Lieb-Robinson bound for observables whose supports are separated by an initially almost particle-…
math-ph2021
The Feshbach-Schur map and perturbation theory
Geneviève Dusson, Israel Sigal, Benjamin Stamm
This paper deals with perturbation theory for discrete spectra of linear operators. To simplify exposition we consider here self-adjoint operators. This theory is based on the Fesh…