Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrodynamic and ballistic transport over large length scales in
  GaAs/AlGaAs   We study hydrodynamic and ballistic transport regimes through nonlocal
resistance measurements and high-resolution kinetic simulations in a mesoscopic
structure on a high-mobility two-dimensional electron system in a GaAs/AlGaAs
heterostructure. We evince the existence of collective transport phenomena in
both regimes and demonstrate that negative nonlocal resistances and current
vortices are not exclusive to only the hydrodynamic regime. The combined
experiments and simulations highlight the importance of device design,
measurement schemes and one-to-one modeling of experimental devices to
demarcate various transport regimes.

14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ