Informazione Quantistica

An introduction to non-Markovian dynamics: Definitions and measures

by Laura Mazzola (Queen's University Belfast)

Europe/Rome
Aula 6 (Dipartimento di Fisica - Ed. E. Fermi)

Aula 6

Dipartimento di Fisica - Ed. E. Fermi

Description
The original approach to quantum mechanics assumes that the quantum system under investigation is isolated from the rest of the universe, i.e. it is closed. In practice, every system interacts in some way with its surrounding, such interaction being source of decoherence. Often the loss of quantum features by the system occurs in an irreversible way. However, for certain processes the coherence and energy lost by the quantum system can be partially recovered in certain time frames. These dynamical situations are generally referred to as non-Markovian. Aim of this talk is to give an introduction to the different definitions and measures of the non-Markovian character of a quantum process.