Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LO-phonon assisted polariton laser   We demonstrate the role of LO-phonon assisted polariton relaxation in
reducing the stimulation threshold in strongly coupled microcavities. When the
energy of the relaxation bottleneck is one LO-phonon above the ground polariton
state, we observe a ten-fold improvement of the polariton relaxation rate in
the linear regime, and a two-fold reduction of the threshold to the non-linear
polariton lasing regime.

2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys