4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
Paper Review: Initial screening in progress
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Anomalous Dimensions of Heavy Operators from Magnon Energies

Presented by Mr. Nirina Maurice HASINA TAHIRIDIMBISOA on 7 Jul 2016 from 11:30 to 11:50
Type: Oral Presentation
Track: Track G - Theoretical and Computational Physics

Abstract

We propose operators with definite scaling dimension, dual to submaximal giant gravitons. Our analysis makes heavy use of techniques using group representation theory. The systems we study consist of strings suspended between maximal and submaximal giant gravitons and are described using spin chains with boundaries. The system enjoys an su(2|2) symmetry which determines the anomalous dimensions in the gauge theory. Complete agreement with energies computed in the dual string theory is demonstrated. Further, the symmetry determines the reflection/scattering matrices for boundary and bulk magnons. The resulting S-matrix passes a number of highly non-trivial checks. The boundary condition on the open spin chain is inconsistent with the Yang-Baxter equation so that ultimately the system is not integrable.

Award

Yes

Level

PhD

Supervisor

Prof. Robert de Mello Koch robert@neo.phys.wits.ac.za University of the Witwatersrand

Paper

No

Permission

Yes

Place

Location: Kramer Law building
Address: UCT Middle Campus Cape Town
Room: 2A


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Co-authors

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