Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunneling Spectroscopy of Quantum Hall States in Bilayer Graphene PN
  Networks   Two dimensional electronic systems under strong magnetic field form quantum
Hall (QH) edge states, which propagate along the boundary of a sample with a
dissipationless current. Engineering the pathway of these propagating
one-dimensional chiral modes enables the investigation of quantum tunneling
between adjacent QH states. Here, we report tunneling transport in spatially
controlled networks of QH edge states in bilayer graphene. We observe resonant
tunneling between co-propagating QH edges across barriers formed by
electrically defining incompressible strips. Employing spectroscopic tunneling
measurements enable the direct probing of the spatial profile, density of
states, and compressibility of the QH edge states with an unprecedented energy
resolution. The capability to engineer the QH edge network provides an
opportunity to build future quantum electronic devices supported by rich
underline physics.

9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg