Dr
Arturo
Konderak
University of Bari
Time: Wednesday, May 22th, 2024, at 14:30 CEST
Place: Room 203 of the Institute of Physics PAN
Zoom: https://us06web.zoom.us/j/81067604076?pwd=ZcepRfhmZa6E5njcATHrr8BXKSAUto.1
ID: 810 6760 4076
Code: 628975
Abstract
Given the algebra of observables of a quantum system subject to selection rules, a state can be represented by different density matrices. As a result, different von Neumann entropies can be associated with the same state. We give a geometric definition of entropy for states of an algebra of observables. The entropy so defined satisfies all the desirable thermodynamic properties, and reduces to the von Neumann entropy in the quantum mechanical case. The definition is given both for finite and infinite dimensional systems.
