Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction signatures and non-Gaussian photon states from a strongly
  driven atomic ensemble coupled to a nanophotonic waveguide   We study theoretically a laser-driven one-dimensional chain of atoms
interfaced with the guided optical modes of a nanophotonic waveguide. The
period of the chain and the orientation of the laser field can be chosen such
that emission occurs predominantly into a single guided mode. We find that the
fluorescence excitation line shape changes as the number of atoms is increased,
eventually undergoing a splitting that provides evidence for the
waveguide-mediated all-to-all interactions. Remarkably, in the regime of strong
driving the light emitted into the waveguide is non-classical, with a
significant negativity of the associated Wigner function. We show that both the
emission properties and the non-Gaussian character of the light are robust
against voids in the atom chain, enabling the experimental study of these
effects with present-day technology. Our results offer a route towards novel
types of fiber-coupled quantum light sources and an interesting perspective for
probing the physics of interacting atomic ensembles through light.

4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ