期刊
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
卷 2016, 期 11, 页码 -出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ptep/ptw151
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资金
- SCOAP3
- Engineering and Physical Sciences Research Council [EP/K034456/1] Funding Source: researchfish
- EPSRC [EP/K034456/1] Funding Source: UKRI
The supersymmetric index of the 4D N = 1 theory realized by a brane tiling coincides with the partition function of an integrable 2D lattice model. We argue that a class of half-BPS surface defects in brane tiling models are represented on the lattice model side by transfer matrices constructed from L-operators. For the simplest surface defects in theories with SU(2) flavor groups, we identify the relevant L-operator as that discovered by Sklyanin in the context of the eight-vertex model. We verify this identification by computing the indices of class-S and -Sk theories in the presence of the surface defects.
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