On Lieb-Robinson bounds for the Bose-Hubbard model
arXiv:2109.04103 · doi:10.1007/s00220-022-04416-8
Abstract
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-free region. We further obtain a maximal velocity bound for particle transport through an initially empty region which also applies to long-range hopping. Our techniques originate in the proofs of maximal velocity bounds for Schrödinger operators and scattering theory in non-relativistic QED.
arXiv comment29 pages, to appear in CMP
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