Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlling photon bunching and antibunching of two quantum emitters
  near a core-shell sphere   The collective spontaneous emission of two point-dipole emitters near a
plasmonic core-shell nanosphere is theoretically investigated. Based on the
expansion of mode functions in vector spherical harmonics, we derive closed
analytical expressions for both the cooperative decay rate and the
dipole-dipole interaction strength associated with two point dipoles close to a
sphere. Considering a plasmonic nanoshell containing a linearly amplifying
medium inside the core, the second-order correlation function for the two
emitters shows that it is possible to tune the photon emission, selecting
either photon bunching or antibunching as a function of the polarization and
position of the sphere. This result opens vistas to applications involving
tunable single-photon sources in engineered artificial media.

14
The categories of this paper are: math-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th