Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced scattering between electrons and exciton-polaritons in a
  microcavity   The interplay between strong light-matter interactions and charge doping
represents an important frontier in the pursuit of exotic many-body physics and
optoelectronics. Here, we consider a simplified model of a two-dimensional
semiconductor embedded in a microcavity, where the interactions between
electrons and holes are strongly screened, allowing us to develop a
diagrammatic formalism for this system with an analytic expression for the
exciton-polariton propagator. We apply this to the scattering of spin-polarized
polaritons and electrons, and show that this is strongly enhanced compared with
exciton-electron interactions. As we argue, this counter-intuitive result is a
consequence of the shift of the collision energy due to the strong light-matter
coupling, and hence this is a generic feature that applies also for more
realistic electron-hole and electron-electron interactions. We furthermore
demonstrate that the lack of Galilean invariance inherent in the light-matter
coupled system can lead to a narrow resonance-like feature for
polariton-electron interactions close to the polariton inflection point. Our
results are potentially important for realizing tunable light-mediated
interactions between charged particles.

2
The categories of this paper are: math
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th