Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-02-09
Physics
High Energy Physics
High Energy Physics - Theory
17 pages, uses amsfonts; minor corrections, references added
Scientific paper
p-Gerbes are a generalization of bundles that have (p+2)-form field strengths. We develop their properties and use them to show that every theory of p-gerbes can be reinterpreted as a gauge theory containing p-dimensional extended objects. In particular, we show that every closed (p+2)-form with integer cohomology is the field strength for a gerbe, and that every p-gerbe is equivalent to a bundle with connection on the space of p-dimensional submanifolds of the original space. We also show that p-gerbes are equivalent to sheaves of (p-1)-gerbes, and use this to define a K-theory of gerbes. This K-theory classifies the charges of (p+1)-form connections in the same way that bundle K-theory classifies 1-form connections.
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