Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Redfield reduced dynamics and entanglement   In phenomenological applications the time evolution of subsystems immersed in
an external environment are sometimes described by Markovian semigroups of
Redfield type that result non-positive: the appearence of negative
probabilities is avoided by restricting the admissible initial conditions to
those states that remain positive under the action of the dynamics. We show
that this often adopted procedure may lead to physical inconsistencies in
presence of entanglement.

24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
3
The categories of this paper are: physics