Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum emitter formation in carbon-doped monolayer hexagonal boron
  nitride   Single photon emitters (SPEs) in hexagonal boron nitride (hBN) are promising
candidates for quantum light generation. Despite this, techniques to control
the formation of hBN SPEs down to the monolayer limit are yet to be
demonstrated. Recent experimental and theoretical investigations have suggested
that the visible wavelength single photon emitters in hBN originate from
carbon-related defects. Here we demonstrate a simple strategy for controlling
SPE creation during the chemical vapor deposition growth of monolayer hBN via
regulating surface carbon concentration. By increasing surface carbon
concentration during hBN growth, we observe increases in carbon doping levels
by 2.4 fold for B-C bonds and 1.6 fold for N-C bonds. For the same samples we
observe an increase in SPE density from 0.13 to 0.30 emitters/um2. Our simple
method enables the reliable creation of hBN SPEs in monolayer samples for the
first time, opening the door to advanced 2D quantum state engineering.

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The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
2
The categories of this paper are: math