28 citations · 62 across the 5 of their papers we have counts for
4 papers · 1 filter
Infraparticle states in the massless Nelson model -- revisited
Vincent Beaud, Wojciech Dybalski, Gian Michele Graf
We provide a new construction of infraparticle states in the massless Nelson model. The approximating sequence of our infraparticle state does not involve any infrared cut-offs. It…
Bounds on the bipartite entanglement entropy for oscillator systems with or without disorder
Vincent Beaud, Julian Sieber, Simone Warzel
We give a direct alternative proof of an area law for the entanglement entropy of the ground state of disordered oscillator systems---a result due to Nachtergaele, Sims and Stolz.…
Bounds on the entanglement entropy of droplet states in the XXZ spin chain
Vincent Beaud, Simone Warzel
We consider a class of one-dimensional quantum spin systems on the finite lattice , related to the XXZ spin chain in its Ising phase. It includes in particular…
Low-energy Fock-space localization for attractive hard-core particles in disorder
Vincent Beaud, Simone Warzel
We study a one-dimensional quantum system with an arbitrary number of hard-core particles on the lattice, which are subject to a deterministic attractive interaction as well as a r…