In recent years, the study of heat to work conversion has been re-invigorated by
nanotechnology. Steady-state devices do this conversion without any macroscopic moving …

A ferromagnetic insulator (FI) attached to a conventional superconductor (S) changes
drastically the properties of the latter. Specifically, the exchange field at the FI/S interface …

Machines are only Carnot efficient if they are reversible, but then their power output is
vanishingly small. Here we ask, what is the maximum efficiency of an irreversible device with …

We show that for systems with broken time-reversal symmetry the maximum efficiency and
the efficiency at maximum power are both determined by two parameters: a “figure of merit” …

Hamiltonian systems can be classified into ten classes, in terms of the presence or absence
of time-reversal, particle-hole, and sublattice/chiral symmetries. We construct a quantum …

We investigate the nonlinear scattering theory for quantum systems with strong Seebeck and
Peltier effects, and consider their use as heat engines and refrigerators with finite power …

We discuss a quantum thermal machine that generates power from a thermally driven
double quantum dot coupled to normal and superconducting reservoirs. Energy exchange …

We discuss the thermoelectrical properties of nanowires hosting Majorana states. For a
Majorana nanowire directly coupled to two normal reservoirs the thermopower always …

We investigate the basic properties of the thermopower (Seebeck coefficient) of phase-
coherent conductors under the influence of dephasing and inelastic processes. Transport …

We show that when inelastic scattering effects are taken into account, the thermopower is, in
general, asymmetric under magnetic field reversal, even for noninteracting systems. Our …