Linnaeus colloquium: Quantum thermal transport in circuits
Talk by Frederic Pierre, C2N, Paris-Saclay University, France
Frederic Pierre, Research Director at French National Centre for Scientific Research | CNRS · Centre de Nanosciences et de Nanotechnologies (C2N)
Abstract: Quantum thermal transport in circuits
Small electrical circuits are ruled by the laws of quantum mechanics. The thermal implications cover fundamental topics from quantum control of heat to quantum thermodynamics, with prospects of novel calorimetry devices and thermal machines as well as an ineluctably growing influence on nanocircuit engineering. Although the quantum transport of electricity is being actively investigated since more than three decades, the thermal facet is more challenging to access. In particular, there is no equivalent of the ammeter for the flow of heat. Only recently experimental observations are emerging, such as the universal thermal conductance quantum, heat interferometry, or the heat conductance across a superconducting quantum bit. After a general introduction of the field, I will present the experimental determination of the universal limit imposed to heat flow by quantum mechanics, and the observation of heat Coulomb blockade, a many-body quantum effect that can selectively apply to heat but not to electricity in violation of the standard Wiedemann-Franz law.
Kollektorn, lecture room, MC2-huset, MC2
17 May, 2018, 15:00
17 May, 2018, 17:00