Seminar @ICTP Stasi Rm - Dariusz CHRUSCINSKI - Monday 20 November at 4 pm

[CM Section]

Condensed Matter and Statistical Physics Seminar
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Monday 20 November at 4:00 p.m.

Luigi Stasi Seminar Room, first floor, ICTP Leonardo building
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Speaker:
Dariusz CHRUSCINSKI (Div. Mathematical Physics, Institute of
Physics, Nicolaus Copernicus University, Torun, Poland)

Title:
On Memory Kernel Master Equation

Abstract:
I provide sufficient conditions for the memory-kernel governing nonlocal 
master
equation which guarantee a legitimate (completely positive and 
trace-preserving)
dynamical map.
It turns out that these conditions provide natural parametrizations of 
the dynamical
map being a generalization of the Markovian semigroup. This 
parametrization is
defined by the so-called legitimate pair-monotonic quantum operation and 
completely
positive map-and it is shown that such a class of maps covers almost all 
known
examples from the Markovian semigroup, the semi-Markov evolution, up to 
collision
models and their generalizations.