144 citations · 1k across the 90 of their papers we have counts for
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A continuum approximation for the excitations of the (1,1,...,1) interface in the quantum Heisenberg model
Oscar Bolina, Pierluigi Contucci, Bruno Nachtergaele +1
It is shown that, with an appropriate scaling, the energy of low-lying excitations of the (1,1,...,1) interface in the -dimensional quantum Heisenberg model are given by the spe…
Finite-volume excitations of the 111 interface in the quantum XXZ model
Oscar Bolina, Pierluigi Contucci, Bruno Nachtergaele +1
We show that the ground states of the three-dimensional XXZ Heisenberg ferromagnet with a 111 interface have excitations localized in a subvolume of linear size R with energies bou…
Path Integral Representation for Interface States of the Anisotropic Heisenberg Model
Oscar Bolina, Pierluigi Contucci, Bruno Nachtergaele
We develop a geometric representation for the ground state of the spin-1/2 quantum XXZ ferromagnetic chain in terms of suitably weighted random walks in a two-dimensional lattice.…