Quantum thermodynamics is an emerging research field aiming to extend
standard thermodynamics and non-equilibrium statistical physics to ensembles of
sizes well below the thermodynamic limit, in non-equilibrium situations, and
with the full inclusion of quantum effects. Fuelled by experimental advances
and the potential of future nanoscale applications this research effort is
pursued by scientists with different backgrounds, including statistical
physics, many-body theory, mesoscopic physics and quantum information theory,
who bring various tools and methods to the field. A multitude of theoretical
questions are being addressed ranging from issues of thermalisation of quantum
systems and various definitions of "work", to the efficiency and power of
quantum engines. This overview provides a perspective on a selection of these
current trends accessible to postgraduate students and researchers alike.Comment: 48 pages, improved and expanded several sections. Comments welcom
