We discuss the consequences of the unique symmetry of de Sitter spacetime. This symmetry
leads to the specific thermodynamic properties of the de Sitter vacuum, which produces a …

The second law of thermodynamics states that the entropy of an isolated system can only
increase over time. This appears to conflict with the reversible evolution of isolated quantum …

We establish that the nonequilibrium dynamics of most pure states gives rise to the same
entropy production as that of the corresponding ensemble, provided the effective dimension …

Building on the approach of stochastic thermodynamics, we define entropy production for
arbitrary quantum processes, using Bayesian tools to capture the inherent subjective …