Data / Hora
Date(s) - 20/05/2021
17:00 - 18:00
Categorias
COLÓQUIO DO DEPARTAMENTO DE FÍSICA
Informational steady-states in continuously monitored quantum systems
Prof. Gabriel Landi
USP
20/05/2021 – 5a.f – 17h
The information on a quantum process acquired through measurements plays a crucial role in the determination of its nonequilibrium thermodynamic properties. In this talk I discuss a unifying formalism for the description of the thermodynamics of continuously monitored systems, where measurements are only performed on the environment connected to a system. We show, in particular, that the conditional and unconditional entropy production, which quantify the degree of irreversibility of the open system’s dynamics, are related to each other by the Holevo quantity. This, in turn, can be further split into an information gain rate and loss rate, which provide conditions for the existence of informational steady-states (ISSs), i.e. stationary states of a conditional dynamics that are maintained owing to the unbroken acquisition of information. We also report on the first experimental inference of the stochastic entropy production rate for a continuously monitored mesoscopic quantum system.
Conectem no “zoom” com o seguinte link para assistir o seminário: link para o colóquio
Meeting ID: 949 1878 6097
Password: 025305