Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Statistical study of conductance properties in one-dimensional quantum
  wires focussing on the 0.7 anomaly   The properties of conductance in one-dimensional (1D) quantum wires are
statistically investigated using an array of 256 lithographically-identical
split gates, fabricated on a GaAs/AlGaAs heterostructure. All the split gates
are measured during a single cooldown under the same conditions. Electron
many-body effects give rise to an anomalous feature in the conductance of a
one-dimensional quantum wire, known as the `0.7 structure' (or `0.7 anomaly').
To handle the large data set, a method of automatically estimating the
conductance value of the 0.7 structure is developed. Large differences are
observed in the strength and value of the 0.7 structure [from $0.63$ to
$0.84\times (2e^2/h)$], despite the constant temperature and identical device
design. Variations in the 1D potential profile are quantified by estimating the
curvature of the barrier in the direction of electron transport, following a
saddle-point model. The 0.7 structure appears to be highly sensitive to the
specific confining potential within individual devices.

22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th