Hidden Markov chains: models of quantum dynamics with memory
KTH/Nordita/SU seminar in Theoretical Physics [before December 2013]
Wednesday 04 November 2009
to 12:00 at
Göran Lindblad (KTH)
Most mathematical models used to describe relaxation processes
in open quantum systems are of the Markov type: the evolution
is defined by a semigroup of completely positive maps.
Introducing models with more realistic dynamics including
memory effects has proved difficult and controversial.
In this talk I will describe a class of simple models where
the non-Markovian properties can be clearly seen,
e.g. in graphs of numerical simulations.