1.1k citations · 1.8k across the 45 of their papers we have counts for
45 papers
Operator Growth in Disordered Spin Chains: Indications for the Absence of Many-Body Localization
A. Weisse, R. Gerstner, J. Sirker
We consider the spreading of a local operator in one-dimensional systems with Hamiltonian by calculating the -fold commutator . We derive bounds for…
Fourth-neighbour two-point functions of the XXZ chain and the Fermionic basis approach
Frank Göhmann, Raphael Kleinemühl, Alexander Weiße
We give a descriptive review of the Fermionic basis approach to the theory of correlation functions of the XXZ quantum spin chain. The emphasis is on explicit formulae for short-ra…
Numerical resonances for Schottky surfaces via Lagrange-Chebyshev approximation
Oscar Bandtlow, Anke Pohl, Torben Schick +1
We present a numerical method to calculate resonances of Schottky surfaces based on Selberg theory, transfer operator techniques and Lagrange-Chebyshev approximation. This method i…
Zero is a resonance of every Schottky surface
Alexander Adam, Anke Pohl, Alexander Weiße
For certain spectral parameters we find explicit eigenfunctions of transfer operators for Schottky surfaces. Comparing the dimension of the eigenspace for the spectral parameter ze…
Records on the vanishing of Fourier coefficients of Powers Of the Dedekind Eta Function
Bernhard Heim, Markus Neuhauser, Alexander Weisse
In this paper we significantly extend Serre's table on the vanishing properties of Fourier coefficients of odd powers of the Dedekind eta function. We address several conjectures o…
Anisotropic magnetic interactions and spin dynamics in the spin-chain compound Cu(py)Br: An experimental and theoretical study
J. Zeisner, M. Brockmann, S. Zimmermann +9
We compare theoretical results for electron spin resonance (ESR) properties of the Heisenberg-Ising Hamiltonian with ESR experiments on the quasi-one-dimensional magnet Cu(py)B…