52 citations · 140 across the 9 of their papers we have counts for
6 papers · 1 filter
Decay of spin-spin correlations in disordered quantum and classical spin chains
Jonas Richter, Dennis Schubert, Robin Steinigeweg
The real-time dynamics of equal-site correlation functions is studied for one-dimensional spin models with quenched disorder. Focusing on infinite temperature, we present a compari…
Magnetization dynamics in clean and disordered spin-1 XXZ chains
Jonas Richter, Niklas Casper, Wolfram Brenig +1
We study spin transport in the one-dimensional anisotropic S = 1 Heisenberg model. Particular emphasis is given to dynamics at infinite temperature, where current autocorrelations…
Exponential damping induced by random and realistic perturbations
Jonas Richter, Fengping Jin, Lars Knipschild +4
Given a quantum many-body system and the expectation-value dynamics of some operator, we study how this reference dynamics is altered due to a perturbation of the system's Hamilton…
Relaxation of dynamically prepared out-of-equilibrium initial states within and beyond linear response theory
Jonas Richter, Mats H. Lamann, Christian Bartsch +2
We consider a realistic nonequilibrium protocol, where a quantum system in thermal equilibrium is suddenly subjected to an external force. Due to this force, the system is driven o…
Dynamical typicality for initial states with a preset measurement statistics of several commuting observables
B. N. Balz, J. Richter, J. Gemmer +2
We consider all pure or mixed states of a quantum many-body system which exhibit the same, arbitrary but fixed measurement outcome statistics for several commuting observables. Tak…
Combining Dynamical Quantum Typicality and Numerical Linked Cluster Expansions
Jonas Richter, Robin Steinigeweg
We demonstrate that numerical linked cluster expansions (NLCE) yield a powerful approach to calculate time-dependent correlation functions for quantum many-body systems in one dime…