225 citations · 1.1k across the 20 of their papers we have counts for
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Driven Spin Systems as Quantum Thermodynamic Machines: Fundamental Limits
M. J. Henrich, M. Michel, G. Mahler
We show that coupled two level systems like qubits studied in quantum information can be used as a thermodynamic machine. At least three qubits or spins are necessary and arranged…
Microscopic Quantum Mechanical Foundation of Fourier's Law
Mathias Michel, Jochen Gemmer, Günter Mahler
Besides the growing interest in old concepts like temperature and entropy at the nanoscale, theories of relaxation and transport have recently regained a lot of attention. With the…
Normal Transport Behavior in Finite One-Dimensional Chaotic Quantum Systems
Robin Steinigeweg, Jochen Gemmer, Mathias Michel
We investigate the transport of energy, magnetization, etc. in several finite one-dimensional (1D) quantum systems only by solving the corresponding time-dependent Schroedinger equ…
Small quantum networks operating as quantum thermodynamic machines
M. J. Henrich, M. Michel, G. Mahler
We show that a 3-qubit system as studied for quantum information purposes can alternatively be used as a thermodynamic machine when driven in finite time and interfaced between two…
Limited validity of the Kubo formula for thermal conduction in modular quantum systems
Jochen Gemmer, Mathias Michel, Robin Steinigeweg
The Kubo formula describes a current as a response to an external field. In the case of heat conduction there is no such external field. We analyze why and to what extend it is nev…
Application of the Hilbert Space Average Method on Heat Conduction Models
Mathias Michel, Jochen Gemmer, Guenter Mahler
We analyze closed one-dimensional chains of weakly coupled many level systems, by means of the so-called Hilbert space average method (HAM). Subject to some concrete conditions on…