261 citations · 2.1k across the 88 of their papers we have counts for
8 papers · 1 filter
Lindblad dynamics from spatio-temporal correlation functions in nonintegrable spin-1/2 chains with different boundary conditions
Markus Kraft, Jonas Richter, Fengping Jin +6
We investigate the Lindblad equation in the context of boundary-driven magnetization transport in spin- chains. Our central question is whether the nonequilibrium steady state…
Spin-1/2 XXZ chain coupled to two Lindblad baths: Constructing nonequilibrium steady states from equilibrium correlation functions
Tjark Heitmann, Jonas Richter, Fengping Jin +7
State-of-the-art approaches to extract transport coefficients of many-body quantum systems broadly fall into two categories: (i) they target the linear-response regime in terms of…
Spatiotemporal dynamics of classical and quantum density profiles in low-dimensional spin systems
Tjark Heitmann, Jonas Richter, Fengping Jin +3
We provide a detailed comparison between the dynamics of high-temperature spatiotemporal correlation functions in quantum and classical spin models. In the quantum case, our large-…
Temperature- and Size-dependence of Line shape of ESR spectra of XXZ antiferromagnetic chain
Hiroki Ikeuchi, Hans De Raedt, Sylvain Bertaina +1
The ESR (Electron Spin Resonance) spectrum of the XXZ spin chain with finite length shows a double-peak structure at high temperatures around the EPR (Electron Paramagnetic Resonan…
Computation of ESR spectra from the time evolution of the magnetization: comparison of autocorrelation and Wiener-Khinchin-relation based methods
Hiroki Ikeuchi, Hans De Raedt, Sylvain Bertaina +1
The calculation of finite temperature ESR spectra for concrete specified crystal configurations is a very important issue in the study of quantum spin systems. Although direct eval…
Quantum Decoherence at Finite Temperatures
M. A. Novotny, F. Jin, S. Yuan +3
We study measures of decoherence and thermalization of a quantum system in the presence of a quantum environment (bath) . The whole system is prepared in a canonical thermal…
Classical and Quantum Annealing in the Median of Three Satisfiability
T. Neuhaus, M. Peschina, K. Michielsen +1
We determine the classical and quantum complexities of a specific ensemble of three-satisfiability problems with a unique satisfying assignment for up to N=100 and N=80 variables,…
Feedback Effect on Landau-Zener-Stueckelberg Transitions in Magnetic Systems
Anthony Hams, Hans De Raedt, Seiji Miyashita +1
We examine the effect of the dynamics of the internal magnetic field on the staircase magnetization curves observed in large-spin molecular magnets. We show that the size of the ma…