From Markovian semigroup to non-Markovian quantum evolution
Dariusz Chruściński, Andrzej Kossakowski · Europhysics Letters (EPL) · 2012
We provided a class of legitimate memory kernels leading to completely positive trace preserving dynamical maps.Our construction is based on a simple normalization procedure.Interestingly, when applied to the celebrated Wigner-Weisskopf theory it gives the standard Markovian evolution governed by the local master equation.