Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On supersymmetric interfaces for string theory   We construct the world-sheet interface which preserves space-time
supersymmetry in type II superstring theories in the Green-Schwarz formalism.
This is an analog of the conformal interface in two-dimensional conformal field
theory. We show that a class of the supersymmetric interfaces generates
T-dualities of type II theories, and that these interfaces have a geometrical
interpretation in the doubled target space. We compute the partition function
with a pair of the supersymmetric interfaces inserted, from which we read off
the spectrum of the modes coupled to the interfaces and the Casimir energy
between them. We also derive the transformation rules under which a set of
D-branes is transformed to another by the interface.

6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th