Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trion-polaritons : How strong coupling to a cavity changes the orbital
  and spin properties of trions   The elementary optical excitations of a two-dimensional electron system
strongly coupled to a microcavity are trion-polaritons. Using a variational
approach, we demonstrate that the competition between Coulomb interaction and
light-matter coupling plays a crucial role in determining the lowest-energy
orbital and spin properties of trion-polaritons. When the light-matter
interaction exceeds the bare trion binding, singlet and triplet trion states
are mixed due to a cavity-mediated spin-orbit effect, which in turn results in
a strong increase of the outer electron Bohr radius. In this strong cavity
coupling regime, the trion-polariton consists of an exciton-polariton
surrounded by a weakly bound electron and is reminiscent of a coherent Rydberg
excitation.

27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
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The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics