Fuzzy Measurements and Coarse Graining in Many-Body Quantum Systems

by Prof. Carlos Pineda

Tuesday 27 Jun 2023, 14:30 → 16:30 Europe/Rome

281 (Dipartimenti di Fisica )

We investigate fuzzy measurements and coarse graining in many-body
systems from a quantum perspective, utilizing the concept of imperfect
detectors. In order to address these issues, we employ the language of
quantum channels, whose foundations will be reviewed during the
presentation. We demonstrate how to consider various geometries
adaptable to a wide range of experimental situations. Furthermore, we
characterize these channels and find that the observable state space
contracts dramatically with the number of particles. We will discuss
relevant advancements pertaining to the observed effective dynamics
and the entropy associated with observable states.