Effective actions, relative cohomology and Chern-Simons forms
نویسندگان
چکیده
منابع مشابه
Brs-chern-simons Forms and Cyclic Homology
We use some BRS techniques to construct Chern-Simons forms generalizing the Chern character of K1 groups in the Cuntz-Quillen description of cyclic homology. MSC91: 19D55, 81T13, 81T50
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In string theory, nilpotence of the BRS operator δ for the string functional relates the Chern-Simons term in the gauge-invariant antisymmetric tensor field strength to the central term in the Kac-Moody algebra. We generalize these ideas to p-branes with odd p and find that the Kac-Moody algebra for the string becomes the Mickelsson-Faddeev algebra for the p-brane.
متن کاملTransgression forms and extensions of Chern-Simons gauge theories
A gauge invariant action principle, based on the idea of transgression forms, is proposed. The action extends the Chern-Simons form by the addition of a boundary term that makes the action gauge invariant (and not just quasi-invariant). Interpreting the spacetime manifold as cobordant to another one, the duplication of gauge fields in spacetime is avoided. The advantages of this approach are pa...
متن کاملElliptic Genera, Transgression and Loop Space Chern-simons Forms
We compute the Chern-Simons transgressed forms of some modularly invariant characteristic forms, which are related to the elliptic genera. We study the modularity properties of these secondary characteristic forms and the relations among them. We also compute the Chern-Simons forms of some vector bundles over free loop space.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)01434-2