128 citations
- University of StuttgartDE7 papers
- Bielefeld UniversityDE4 papers
- Ames National LaboratoryUS3 papers
- Iowa State UniversityUS3 papers
- Forschungszentrum JülichDE2 papers
- Technische Universität BraunschweigDE2 papers
- Tohoku UniversityJP2 papers
- University Hospital MagdeburgDE2 papers
- University of FreiburgDE2 papers
- Brandeis UniversityUS1 paper
- Czech Academy of SciencesCZ1 paper
- Florida State UniversityUS1 paper
12 papers · 1 filter
Equivalence of transport coefficients in bath-induced and dynamical scenarios
Robin Steinigeweg, Marcel Ogiewa, Jochen Gemmer
We investigate the transport of a single excitation through a chain of weakly coupled subunits. At both ends the chain is exposed to baths which are incorporated by means of a mast…
Density dynamics from current auto-correlations at finite time- and length-scales
Robin Steinigeweg, Hannu Wichterich, Jochen Gemmer
We consider the increase of the spatial variance of some inhomogeneous, non-equilibrium density (particles, energy, etc.) in a periodic quantum system of condensed matter-type. Thi…
Projection operator approach to transport in complex single-particle quantum systems
Robin Steinigeweg, Jochen Gemmer, Heinz-Peter Breuer +1
We discuss the time-convolutionless (TCL) projection operator approach to transport in closed quantum systems. The projection onto local densities of quantities such as energy, mag…
Van Der Waals Revisited
K. Baerwinkel, J. Schnack
The van-der-Waals version of the second virial coefficient is not far from being exact if the model parameters are appropriately chosen. It is shown how the van-der-Waals resemblan…
Heat Transport in Quantum Spin Chains: Stochastic Baths vs Quantum Trajectories
Carlos Mejia-Monasterio, Hannu Wichterich
We discuss the problem of heat conduction in quantum spin chain models. To investigate this problem it is necessary to consider the finite open system connected to heat baths. We d…
Transition from diffusive to ballistic dynamics for a class of finite quantum models
Robin Steinigeweg, Heinz-Peter Breuer, Jochen Gemmer
The transport of excitation probabilities amongst weakly coupled subunits is investigated for a class of finite quantum systems. It is demonstrated that the dynamical behavior of t…