75 citations · 178 across the 7 of their papers we have counts for
4 papers · 1 filter
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…
Quantum Heat Transport: Perturbation Theory in Liouville Space
Mathias Michel, Jochen Gemmer, Guenter Mahler
We consider chains consisting of several identical subsystems weakly coupled by various types of next neighbor interactions. At both ends the chain is coupled to a respective heat…
Global and local relaxation of a spin-chain under exact Schroedinger and master-equation dynamics
Markus J. Henrich, Mathias Michel, Michael Hartmann +2
We solve the Schroedinger equation for an interacting spin-chain locally coupled to a quantum environment with a specific degeneracy structure. The reduced dynamics of the whole sp…
Fourier's Law confirmed for a class of small quantum systems
Mathias Michel, Michael Hartmann, Jochen Gemmer +1
Within the Lindblad formalism we consider an interacting spin chain coupled locally to heat baths. We investigate the dependence of the energy transport on the type of interaction…