Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase diagram for injection locking a superradiant laser   We experimentally and theoretically study the response of a superradiant or
bad-cavity laser to an applied coherent drive. We observe two forms of
synchronization (injection locking) between the superradiant ensemble and the
applied drive: one attractive and one repulsive in nature. We explain the
region of repulsion as arising from the higher three-dimensional description of
the atomic spin state that stores the laser coherence in a superradiant laser,
as opposed to a two-parameter description of the electric field in a
traditional good-cavity laser. We derive a phase diagram of predicted behavior
and experimentally measure the response of the system across various
trajectories therein.

22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess