Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cavity-control of bright and dark interlayer excitons in van der Waals
  heterostructures   Monolayer (ML) transition metal dichalcogenides (TMDs) integrated in optical
microcavities host exciton-polaritons as a hallmark of the strong light-matter
coupling regime. Analogous concepts for hybrid light-matter systems employing
spatially indirect excitons with a permanent electric dipole moment in
heterobilayer (HBL) crystals promise realizations of exciton-polariton gases
and condensates with immanent dipolar interactions. Here, we identify optical
signatures of spatially indirect momentum-bright and momentum-dark interlayer
excitons in vertical MoSe$_2$-WSe$_2$ heterostructures and implement
cavity-control of both exciton manifolds. Our experiments quantify the strength
of light-matter coupling for both zero and finite momentum excitons residing in
Moir\'{e} superlattices of TMD HBLs and demonstrate that both exciton species
are susceptible to Purcell enhancement in cavity-modified photonic
environments. Our results form the basis for further developments of dipolar
exciton-polariton gases and condensates in hybrid cavity -- van der Waals
heterostructure systems.

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The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
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The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics