Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum \v{C}erenkov Effect from Hot Carriers in Graphene: An Efficient
  Plasmonic Source   Graphene plasmons (GPs) have been found to be an exciting plasmonic platform,
thanks to their high field confinement and low phase velocity, motivating
contemporary research to revisit established concepts in light-matter
interaction. In a conceptual breakthrough that is now more than 80 years old,
\v{C}erenkov showed how charged particles emit shockwaves of light when moving
faster than the phase velocity of light in a medium. To modern eyes, the
\v{C}erenkov effect (\v{C}E) offers a direct and ultrafast energy conversion
scheme from charge particles to photons. The requirement for relativistic
particles, however, makes \v{C}E-emission inaccessible to most nanoscale
electronic and photonic devices. We show that GPs provide the means to overcome
this limitation through their low phase velocity and high field confinement.
The interaction between the charge carriers flowing inside graphene and GPs
presents a highly efficient 2D \v{C}erenkov emission, giving a versatile,
tunable, and ultrafast conversion mechanism from electrical signal to plasmonic
excitation.

22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga