Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Manifestation of a non-abelian gauge field in a p-type semiconductor
  system   Gauge theories, while describing fundamental interactions in nature, also
emerge in a wide variety of physical systems. Abelian gauge fields have been
predicted and observed in a number of novel quantum many-body systems,
topological insulators, ultracold atoms and many others. However, the
non-abelian gauge field, while playing the most fundamental role in particle
physics, up to now has remained a purely theoretical construction in many-body
physics. In the present paper we report the first observation of a non-abelian
gauge field in a spin-orbit coupled quantum system. The gauge field manifests
itself in quantum magnetic oscillations of a hole doped two-dimensional (2D)
GaAs heterostructure. Transport measurements were performed in tilted magnetic
fields, where the effect of the emergent non-abelian gauge field was controlled
by the components of the magnetic field in the 2D plane.

13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph