Coulomb Branch and the Moduli Space of Instantons
1 hour 15 mins,
137.71 MB,
MP3
44100 Hz,
250.7 kbits/sec
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Description: |
Hanany, A (Imperial College London)
Friday 31 July 2015, 11:30-12:30 |
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Created: | 2015-08-04 18:40 |
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Collection: | Metric and Analytic Aspects of Moduli Spaces |
Publisher: | Isaac Newton Institute |
Copyright: | Hanany, A |
Language: | eng (English) |
Distribution: | World (downloadable) |
Explicit content: | No |
Aspect Ratio: | 16:9 |
Screencast: | No |
Bumper: | UCS Default |
Trailer: | UCS Default |
Abstract: | The moduli space of k G instantons on C^2, where G is a classical gauge group, has a well known HyperKahler quotient formulation known as the ADHM construction. The extension to exceptional groups is an open problem. In string theory this is realized using a system of branes, and the moduli space of instantons is identified with the Higgs branch of a particular supersymmetric gauge theory with 8 supercharges. A less known, and less studied aspect of moduli spaces of instantons is that they can be realized as the Coulomb branch of a supersymmetric gauge theory in 2+1 dimensions. Recent developments on the understanding of the Coulomb branch gives us a nice solution to the problem where G is an exceptional group, thus allowing a systematic study of these moduli spaces. I will discuss these developments, and present the corresponding quivers, and the Coulomb branch Hilbert Series - the main tool which lead to the recent progress. |
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