Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hybrid metal-dielectric nanocavity for enhanced light-matter
  interactions   Despite tremendous advances in the fundamentals and applications of cavity
quantum electrodynamics (CQED), investigations in this field have primarily
been limited to optical cavities composed of purely dielectric materials. Here,
we demonstrate a hybrid metal-dielectric nanocavity design and realize it in
the InAs/GaAs quantum photonics platform utilizing angled rotational metal
evaporation. Key features of our nanometallic light-matter interface include:
(i) order of magnitude reduction in mode volume compared to that of leading
photonic crystal CQED systems; (ii) surface-emitting nanoscale cylindrical
geometry and therefore good collection efficiency; and finally (iii) strong and
broadband spontaneous emission rate enhancement (Purcell factor ~ 8) of single
photons. This light-matter interface may play an important role in quantum
technologies.

2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
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
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys