Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superstrings with boundary fermions   The Green-Schwarz action for an open superstring with additional boundary
fermions, representing Chan-Paton factors, is studied at the classical level.
The boundary geometry is described by a bundle, with fermionic fibres, over the
super worldvolume of a D-brane together with a map from the total space into
the type II target superspace. This geometry is constrained by the requirement
of kappa-symmetry on the boundary together with the use of the equations of
motion for the fermions. There are two constraints which are formally similar
to those that arise in the abelian case but which differ because of the
dependence on the additional coordinates. The model, when quantised, would be a
candidate for a fully kappa-symmetric theory of a stack of coincident D-branes
including a non-abelian Born-Infeld sector. The example of the D9-brane in a
flat background is studied. The constraints on the non-abelian field strength
are shown to be in agreement with those derived from the pure spinor approach
to the superstring. A covariant formalism is developed and the problem of
quantisation is discussed.

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The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
16
The categories of this paper are: stat
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc