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One-point functions in defect CFT and integrability
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Uppsala University, Sweden.
2015 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2015, no 8, 98Article in journal (Refereed) Published
Abstract [en]

Abstract: 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 XXX<inf>1/2</inf> 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 Néel state. In addition, we present a number of results for the limiting case k → ∞.

Place, publisher, year, edition, pages
2015. Vol. 2015, no 8, 98
Keyword [en]
1/N Expansion, AdS-CFT Correspondence, Bethe Ansatz, Lattice Integrable Models
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-175616DOI: 10.1007/JHEP08(2015)098ISI: 000363530000001ScopusID: 2-s2.0-84940490918OAI: diva2:866333
Swedish Research Council, 2013-4329

QC 20151102

Available from: 2015-11-02 Created: 2015-10-19 Last updated: 2015-11-20Bibliographically approved

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Zarembo, Konstantin
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