Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vortex-Strings in N=2 SQCD and Bulk-String Decoupling   We study vortex-strings in four-dimensional N=2 supersymmetric SU(Nc)xU(1)
gauge theories with Nf hypermultiplets in the fundamental representation of
SU(Nc) and general U(1) charges. If Nf>Nc, the vacuum is not gapped and the
low-energy theory contains both the vacuum massless excitations and the string
zero-modes. The question we address in this work is whether the vacuum and the
string moduli decouple at low energies, allowing a description of the
low-energy dynamics in terms of a two-dimensional theory on the string
worldsheet. We find a simple condition controlling the bulk-string coupling: If
there exist two flavors such that the product of their U(1) charge difference
with the magnetic flux carried by the string configuration is not an integer
multiple of 2\pi, the string has zero-modes that decay slower than 1/r, where r
is the radial distance from the string core. These modes are coupled to the
vacuum massless excitations even at low energies. If, however, all such
products are integer multiples of 2\pi, long-range modes of this type do not
exist and the string moduli decouple from the bulk at low energies. This
condition turns out to coincide with the condition of trivial Aharonov-Bohm
phases for the particles in the spectrum. In addition to a derivation of the
bulk-string decoupling criterion using classical analysis of the string
zero-modes, we provide a non-perturbative derivation of the criterion, which
uses supersymmetric localization techniques.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex