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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Super Weyl invariance: BPS equations from heterotic worldsheets

## Super Weyl invariance: BPS equations from heterotic worldsheetsAdd to your list(s) Download to your calendar using vCal - Groot Nibbelink, S (Ludwig-Maximilians-Universitt Mnchen)
- Thursday 28 June 2012, 16:15-16:30
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact Mustapha Amrani. Mathematics and Applications of Branes in String and M-theory It is well-known that the beta functions on a string worldsheet correspond to the target space equations of motion, e.g. the Einstein equations. We show that the BPS equations, i.e. the conditions of vanishing supersymmetry variations of the space-time fermions, can be directly derived from the worldsheet. To this end we consider a heterotic worldsheet model in the RNS -formulation with (2,0) supersymmetry, which describes a complex torsion target space that supports a holomorphic vector bundle. After a detailed account of its quantization and renormalization, we establish that super Weyl anomaly cancellation implies the heterotic BPS conditions: At the one loop level the geometry is required to be conformally balanced and the gauge background has to satisfy the Hermitean Yang-Mills equations. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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