Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decoherence and Rabi oscillations in a qubit coupled to a quantum
  two-level system   In this paper we review some of our recent results on the problem of a qubit
coupled to a quantum two-level system. We consider both the decoherence
dynamics and the qubit's response to an oscillating external field.

16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs