Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cavity quantum electrodynamics with three-dimensional photonic bandgap
  crystals   This paper gives an overview of recent work on three-dimensional (3D)
photonic crystals with a "full and complete" 3D photonic band gap. We review
five main aspects: 1) spontaneous emission inhibition, 2) spatial localization
of light within a tiny nanoscale volume (aka "a nanobox for light"), 3) the
introduction of a gain medium leading to thresholdless lasers, 4) breaking of
the weak-coupling approximation of cavity QED, both in the frequency and in the
time-domain, 5) decoherence, in particular the shielding of vacuum fluctuations
by a 3D photonic bandgap. In addition, we list and evaluate all known photonic
crystal structures with a demonstrated 3D band gap.

16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg