Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement dynamics for two interacting spins   We study the dynamical generation of entanglement for a very simple system: a
pair of interacting spins, s1 and s2, in a constant magnetic field. Two
different situations are considered:(a) s1 ->\infty, s2 = 1/2 and (b) s1 = s2
->\infty, corresponding, respectively, to a quantum degree of freedom coupled
to a semiclassical one (a qubit in contact with an environment) and a fully
semiclassical system, which in this case displays chaotic behavior. Relations
between quantum entanglement and classical dynamics are investigated.

1
The categories of this paper are: cs
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio