Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deterministic strain-induced arrays of quantum emitters in a
  two-dimensional semiconductor   An outstanding challenge in quantum photonics is scalability, which requires
positioning of single quantum emitters in a deterministic fashion. Site
positioning progress has been made in established platforms including defects
in diamond and self-assembled quantum dots, albeit often with compromised
coherence and optical quality. The emergence of single quantum emitters in
layered transition metal dichalcogenide semiconductors offers new opportunities
to construct a scalable quantum architecture. Here, using nanoscale strain
engineering, we deterministically achieve a two-dimensional lattice of quantum
emitters in an atomically thin semiconductor. We create point-like strain
perturbations in mono- and bi-layer WSe2 which locally modify the band-gap,
leading to efficient funneling of excitons towards isolated strain-tuned
quantum emitters that exhibit high-purity single photon emission. These arrays
of non-classical light emitters open new vistas for two-dimensional
semiconductors in cavity quantum electrodynamics and integrated on-chip quantum
photonics.

8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int