Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement dynamics in a quantum-classical hybrid of two q-bits and
  one oscillator   We investigate new features, especially of entanglement dynamics, which arise
in a quantum-classical hybrid. As a model, we study the coupling between two
quantum mechanical two-level systems, i.e. two q-bits, and a classical harmonic
oscillator. Their interaction is described by a hybrid coupling, in accordance
with a recently developed quantum-classical hybrid theory. We discuss various
situations in which entanglement of the q-bits does (not) evolve. Furthermore,
we point out an experimental application in a hybrid cooling scheme and
indicate topics for future study.

5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math