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quant-ph2025
Sampling Continuous Quantum Dynamics from a Single Static State
Sebastian Gemsheim, Felix Fritzsch
While quantum simulation is one of the most promising applications of modern quantum devices, accessible simulation times are fundamentally limited by finite coherence times due to…
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…