Non-equilibrium quantum transport and quantum "heat engines”
by
Mihail Hristov Mintchev(PI)
→
Europe/Rome
248 (Building C, first floor)
248
Building C, first floor
Description
We investigate the particle and heat transport in a quantum junction with the geometry of star graph. The system is in a non-equilibrium steady state, characterised by the temperatures and chemical potentials of the heat reservoirs connected to the edges of the graph. Although the total energy is conserved in this state, the heat and chemical potential energies are not separately conserved. The junction behaves therefore as energy convertor, which can be compared to a heat engine. We will derive the relative efficiency and discuss its depends on the statistics. We will also describe the probabilities for particle emission and absorption from the heat reservoirs, showing that they fully characterise the quantum transport in the system. For scale invariant interactions in the junction our results are exact and explicit.
