ICAMS / Interdisciplinary Centre for Advanced Materials Simulation


Phase-coherent caloritronics with topological superconductors

Date: 01.03.2021
Time: 1:00 pm
Place: Online event, for access data, please contact anna.gruenebohm@rub.de

Björn Sothmann, Universität Duisburg-Essen, Duisburg, Germany

Topological states of quantum matter have received a lot of attention in recent years. They are characterized by an insulating bulk and topologically protected surface states. In topological superconductors, these surfaces states are Majorana fermions that can serve as fault-tolerant qubits in future topological quantum computing. In this talk, we discuss how phase-coherent heat transport in Josephson junctions based on topological superconductors can be used as a probe of Majorana fermions. In particular, we demonstrate that the transverse thermal conductance is quantized by half the thermal conductance quantum in the presence of Majorana modes and exponentially suppressed otherwise.

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