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One-point functions in defect CFT and integrability
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Uppsala University, Sweden.
Number of Authors: 32015 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 8, article id 098Article in journal (Refereed) Published
Abstract [en]

We calculate planar tree level one-point functions of non-protected operators in the defect conformal field theory dual to the D3-D5 brane system with k units of the world volume flux. Working in the operator basis of Bethe eigenstates of the Heisenberg XXX1/2 spin chain we express the one-point functions as overlaps of these eigenstates with a matrix product state. For k = 2 we obtain a closed expression of determinant form for any number of excitations, and in the case of half-filling we find a relation with the Neel state. In addition, we present a number of results for the limiting case k -> infinity.

Place, publisher, year, edition, pages
2015. no 8, article id 098
Keywords [en]
Bethe Ansatz, Lattice Integrable Models, AdS-CFT Correspondence, 1/N Expansion
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-159569DOI: 10.1007/JHEP08(2015)098ISI: 000363530000001OAI: oai:DiVA.org:su-159569DiVA, id: diva2:1245622
Available from: 2018-09-05 Created: 2018-09-05 Last updated: 2018-09-05Bibliographically approved

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de Leeuw, MariusKristjansen, CharlotteZarembo, Konstantin
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