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quant-ph2024
A link between static and dynamical perturbation theory
Sebastian Gemsheim
Dynamics, the physical change in time and a pillar of natural sciences, can be regarded as an emergent phenomenon when the system of interest is part of a larger, static one. This…
quant-ph2024
Statistical mechanics from relational complex time with a pure state
Sebastian Gemsheim, Jan M. Rost
Thermodynamics and its quantum counterpart are traditionally described with statistical ensembles. Canonical typicality has related statistical mechanics for a system to ensembles…