The paper constructs BPS composite vortex strings whose worldsheet dynamics is a Flag manifold sigma model with couplings fixed by flux differences, and gives GLSM and NLSM formulations.
Two-Dimensional Sigma Models Related to Non-Abelian Strings in Super-Yang-Mills
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abstract
We review diverse two-dimensional models emerging on the world sheet of non-Abelian strings in the low-energy limit. Non-Abelian strings are supported in a class of four-dimensional bulk theories with or without supersymmetry. In supersymmetric bulk theories we are mostly interested in BPS-saturated strings. Some of these two-dimensional models, in particular, heterotic models, were scarcely studied in the past, if at all. Our main emphasis is on the heterotic N=(0,2) models. We describe their large-N solution. We briefly comment on N=(0,1) models although so far they are not obtained on the the world sheet of non-Abelian strings.
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2019 1verdicts
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General Composite Non-Abelian Strings and Flag Manifold Sigma Models
The paper constructs BPS composite vortex strings whose worldsheet dynamics is a Flag manifold sigma model with couplings fixed by flux differences, and gives GLSM and NLSM formulations.