Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing temperature-driven flow lines in a gated two-dimensional
  electron gas with tunable spin-splitting   We study the temperature flow of conductivities in a gated GaAs
two-dimensional electron gas (2DEG) containing self-assembled InAs dots and
compare the results with recent theoretical predictions. By changing the gate
voltage, we are able to tune the 2DEG density and thus vary disorder and
spin-splitting. Data for both the spin-resolved and spin-degenerate phase
transitions are presented, the former collapsing to the latter with decreasing
gate voltage and/or decreasing spin-splitting. The experimental results support
a recent theory, based on modular symmetry, which predicts how the critical
Hall conductivity varies with spin-splitting.

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The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph