Speaker
Giacomo Guarnieri
(MI)
Description
"We characterize the time behavior of the energy exchange between an open
quantum system and its environment in a non-Markovian dynamical regime
using the full counting statistics formalism. In particular we focus on
the occurrence of energy backflow from environment to system, to which
we introduce a suitable condition and measure. We study in detail this quantifier
in two paradigmatic open quantum systems, namely the spin-boson model
and the quantum brownian motion, drawing a connection with recently
introduced notions of non-Markovianity. Results show that, while Born-Markov
semi-group limiting case and, more in general, Markovian regime prevent
the occurrence of energy backflow, non-Markovianity allows for its observation
and quantification".
