Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytic solutions for the spatial character and coherence properties of
  light scattered from two dipole-coupled atoms   Analytic solutions for steady-state expectation values of atomic quantities
and second order correlations are obtained for a fully quantum treatment of two
stationary dipole-coupled atoms driven in a standard geometric configuration by
a near resonant laser. Explicit expressions for the spatial and coherence
properties of the far-field scattered light intensity are derived, valid for
the full range of system parameters. A comprehensive survey of the steady-state
scattering behaviour is given, with key features precisely characterised,
including subradiant scattering, and the regime in which the dipole-dipole
coupling has significant effect. A regime is also found where the incoherent
scattered light develops spatial interference fringes. We examine in detail a
decorrelation approximation that has potential application for larger systems
of atoms that are intractable in a full quantum treatment. Finally, we
introduce the concept of an effective driving field and show that it can
provide a direct and intuitive physical interpretation of key aspects of the
system behaviour, including subradiant scattering.

30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
19
The categories of this paper are: eess
1
The categories of this paper are: cs
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph