Dresden 2017 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
TT: Fachverband Tiefe Temperaturen
TT 3: Transport: Quantum Dots, Quantum Wires, Point Contacts
TT 3.9: Talk
Monday, March 20, 2017, 11:45–12:00, HSZ 201
Optimal quantum interference thermoelectric heat engine with edge states — Peter Samuelsson1, Sara Kheradsoud1, and •Björn Sothmann2 — 1Lund University, 22100 Lund, Sweden — 2Universität Duisburg-Essen, 47048 Duisburg, Germany
We show theoretically that a thermoelectric heat engine, operating exclusively due to quantum-mechanical interference, can reach optimal linear-response performance. A chiral edge state implementation of a close-to-optimal heat engine is proposed in an electronic Mach-Zehnder interferometer with a mesoscopic capacitor coupled to one arm. We demonstrate that the maximum power and corresponding efficiency can reach 90% and 83%, respectively, of the theoretical maximum. The proposed heat engine can be realized with existing experimental techniques and has a performance robust against moderate dephasing.
[1] P. Samuelsson, S. Kheradsoud, B. Sothmann, arXiv:1611.02997 (2016).