Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical Evidence for Approximate Consistency and Markovianity of some
  Quantum Histories in a Class of Finite Closed Spin Systems   Closed quantum systems obey the Schroedinger equation whereas nonequilibrium
behavior of many of systems is routinely described in terms of classical,
Markovian stochastic processes. Evidently, there are fundamental differences
between those two types of behavior. We discuss the conditions under which the
unitary dynamics may be mapped onto pertinent classical stochastic processes.
This is first principally addressed based on the notions of "consistency" and
"Markovianity." Numerical data are presented that show that the above
conditions are to good approximation fulfilled for Heisenberg-type spin models
comprising 12-20 spins. The accuracy to which these conditions are met
increases with system size.

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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: stat