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Intersecting surface defects and two-dimensional CFT
Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada..
Princeton Univ, Princeton Ctr Theoret Sci, Princeton, NJ 08544 USA..
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Teoretisk fysik.
Rutgers State Univ, New High Energy Theory Ctr, Piscataway, NJ 08854 USA..
2017 (engelsk)Inngår i: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 96, nr 4, artikkel-id 045003Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We initiate the study of intersecting surface operators/defects in 4D quantum field theories (QFTs). We characterize these defects by coupled 4D/2D/0D theories constructed by coupling the degrees of freedom localized at a point and on intersecting surfaces in spacetime to each other and to the 4D QFT. We construct supersymmetric intersecting surface defects preserving just two supercharges in N = 2 gauge theories. These defects are amenable to exact analysis by localization of the partition function of the underlying 4D/2D/0D QFT. We identify the 4D/2D/0D QFTs that describe intersecting surface operators in N = 2 gauge theories realized by intersecting M2 branes ending on N M5 branes wrapping a Riemann surface. We conjecture and provide evidence for an explicit equivalence between the squashed four-sphere partition function of these intersecting defects and correlation functions in Liouville/Toda CFT with the insertion of arbitrary degenerate vertex operators, which are labeled by two representations of SU(N).

sted, utgiver, år, opplag, sider
2017. Vol. 96, nr 4, artikkel-id 045003
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URN: urn:nbn:se:uu:diva-333068DOI: 10.1103/PhysRevD.96.045003ISI: 000406756000004OAI: oai:DiVA.org:uu-333068DiVA, id: diva2:1155755
Forskningsfinansiär
Swedish Research Council, 2014-5517Tilgjengelig fra: 2017-11-09 Laget: 2017-11-09 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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