The seminal work by Sadi Carnot in the early nineteenth century provided the blueprint of a
reversible heat engine and the celebrated second law of thermodynamics eventually …

The quantum Otto cycle serves as a bridge between the macroscopic world of heat engines
and the quantum regime of thermal devices composed from a single element. We compile …

Thermodynamics originated in the need to understand novel technologies developed by the
Industrial Revolution. However, over the centuries, the description of engines, refrigerators …

The ability of the internal states of a working fluid to be in a coherent superposition is one of
the basic properties of a quantum heat engine. It was recently predicted that in the regime of …

A quantum thermal machine is an open quantum system coupled to hot and cold thermal
baths. Thus, its dynamics can be well understood using the concepts and tools from non …

Heat engines convert thermal energy into mechanical work and generally involve a large
number of particles. We report the experimental realization of a single-atom heat engine. An …

Developments in the thermodynamics of small quantum systems envisage nonclassical
thermal machines. In this scenario, energy fluctuations play a relevant role in the description …

Quantum heat engines (QHE) are thermal machines where the working substance is a
quantum object. In the extreme case, the working medium can be a single particle or a few …

Quantum heat engines are expected to outperform the classical counterparts due to
quantum coherences involved. Here we experimentally execute a single-ion quantum heat …

The essence of both classical and quantum engines is to extract useful energy (work) from
stochastic energy sources, eg, thermal baths. In Maxwell's demon engines, work extraction …