Anomalous dimensions of heavy operators from magnon energies

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dc.citation.doi10.1007/JHEP03(2016)156en_ZA
dc.citation.issue3en_ZA
dc.contributor.authorde Mello Koch, R.
dc.contributor.authorTahiridimbisoa, N.H.
dc.contributor.authorMathwin, C.
dc.date.accessioned2017-04-13T14:42:11Z
dc.date.available2017-04-13T14:42:11Z
dc.date.issued2016-03
dc.description.abstractWe study spin chains with boundaries that are dual to open strings suspended between systems of giant gravitons and dual giant gravitons. Motivated by a geometrical interpretation of the central charges of su(2|2), we propose a simple and minimal all loop expression that interpolates between the anomalous dimensions computed in the gauge theory and energies computed in the dual string theory. The discussion makes use of a description in terms of magnons, generalizing results for a single maximal giant graviton. The symmetries of the problem determine the structure of the magnon boundary reflection/scattering matrix up to a phase. We compute a reflection/scattering matrix element at weak coupling and verify that it is consistent with the answer determined by symmetry. We find the reflection/scattering matrix does not satisfy the boundary Yang-Baxter equation so that the boundary condition on the open spin chain spoils integrability. We also explain the interpretation of the double coset ansatz in the magnon language.en_ZA
dc.description.librarianNCS2017en_ZA
dc.identifier.citationde Mello Koch, R. Tahiridimbisoa, N.H and Mathwin, C. 2016. Anomalous dimensions of heavy operators from magnon energies. Journal of High Energy Physics 2016 (3) : Article number 156en_ZA
dc.identifier.issn1126-6708 (Print)
dc.identifier.issn1029-8479 (Online)
dc.identifier.urihttp://hdl.handle.net/10539/22393
dc.journal.titleJournal of High Energy Physicsen_ZA
dc.journal.volume2016en_ZA
dc.language.isoenen_ZA
dc.publisherSpringer Verlagen_ZA
dc.rights© 2016 de Mello Koch, R. et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0).en_ZA
dc.subject1/N Expansionen_ZA
dc.subjectAdS-CFT Correspondenceen_ZA
dc.subjectGauge-gravity correspondenceen_ZA
dc.titleAnomalous dimensions of heavy operators from magnon energiesen_ZA
dc.typeArticleen_ZA
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