Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Understanding Fields Using Strings: A Review for Particle Physicists   In addition to being a prime candidate for a fundamental unified theory of
all interactions in nature, string theory provides a natural setting to
understand gauge field theories. This is linked to the concept of "D-branes":
extended, solitonic excitations of string theory which can be studied using
techniques of string theory and which support gauge fields localized along
their world-volumes. It follows that the techniques of string theory can be
very useful even for those particle physicists who are not specifically
interested in unification and/or quantum gravity. In this talk I attempt to
review how strings help us to understand fields. The discussion is restricted
to 3+1 spacetime dimensions.

13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph