Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Interferences in Cooperative Dicke Emission from Spatial
  Variation of Laser Phase   We report generation of a new quantum interference effect in spontaneous
emission from a resonantly driven system of two identical two-level atoms due
to the spatial variation of the laser phase at the positions of the atoms. This
interference affects significantly the spectral features of the emitted
radiation and the quantum entanglement in the system. The interference leads to
dynamic coupling of the populations and coherences in a basis, determined by
the laser phase and represents a kind of vacuum mediated super-exchange between
the symmetric and antisymmetric states.

22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int