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Status |
Confirmed |
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Seminar Series |
LPTENS-HE |
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Subjects |
hep-th |
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Date |
Tuesday 21 February 2023 |
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Time |
14:00 |
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Institute |
LPENS |
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Seminar Room |
Ferdinand Berthier (U207), Bâtiment Jaurès (29 Rue d'Ulm) |
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Speaker's Last Name |
Mason |
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Speaker's First Name |
Lionel |
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Speaker's Email Address |
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Speaker's Institution |
Oxford |
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Title |
Geometry at Strong coupling for amplitudes/Wilson loops |
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Abstract |
The amplitude/Wilson loop correspondence identifies planar N=4 super-Yang-Mills
amplitudes with certain null polygonal Wilson loops at all the values of the
coupling. At strong coupling the Wilson loop was computed by Alday & Maldacena
in
terms of the area of a minimal surface in AdS5. To do so they developed a `Y-
system' for computing the amplitude. This talk re-interprets their construction
as provding the underlying twistor space for a hyperKahler structure on the
corresponding space of kinematic data. This geometry encodes the amplitude in
terms of solutions to well known integrable differential equations. An as yet
unfulfilled aspiration is to extend these ideas beyond strong coupling using
formal similarities with other approaches. |
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arXiv Preprint Number |
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Comments |
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Attachments |
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