A review is given on the foundations and applications of non-Hermitian classical and
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …

This topical review article gives an overview of the interplay between quantum information
theory and thermodynamics of quantum systems. We focus on several trending topics …

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

Quantum thermodynamics is an emerging research field aiming to extend standard
thermodynamics and non-equilibrium statistical physics to ensembles of sizes well below …

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 …

We realize a heat engine using a single-electron spin as a working medium. The spin
pertains to the valence electron of a trapped Ca+ 40 ion, and heat reservoirs are emulated …

Engines are systems and devices that convert one form of energy into another, typically into
a more useful form that can perform work. In the classical setup, physical, chemical, and …

The statistical mechanical description of small systems staying in thermal equilibrium with an
environment can be achieved by means of the Hamiltonian of mean force. In contrast to the …

In recent years substantial efforts have been expended in extending thermodynamics to
single quantum systems. Quantum effects have emerged as a resource that can improve the …

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