Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rabi oscillations in spasers during the nonradiative plasmon excitation   In the approach to the stationary regime, a spaser exhibits complicated and
highly nonlinear dynamics with anharmonic oscillations.1 We demonstrate that
these oscillations are due to Rabi oscillations of the quantum dot in the field
of the nanoparticle. We show that the oscillations may or may not arise
dependent on the initial conditions.

6
The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int