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Gaiotto Duality for the Twisted A_{2N-1} Series
Oscar Chacaltana, Jacques Distler, Yuji Tachikawa
We study 4D N=2 superconformal theories that arise from the compactification of 6D N=(2,0) theories of type A_{2N-1} on a Riemann surface C, in the presence of punctures twisted by…
2d TQFT structure of the superconformal indices with outer-automorphism twists
Noppadol Mekareeya, Jaewon Song, Yuji Tachikawa
We study the superconformal indices of 4d theories coming from 6d N=(2,0) theory of type Γon a Riemann surface, with the action of the outer-automorphism σin the trace. We find tha…
4d partition function on S^1 x S^3 and 2d Yang-Mills with nonzero area
Yuji Tachikawa
We argue that 6d N=(2,0) theory on S^1 x S^3 x C_2 reduces to the 2d q-deformed Yang-Mills on C_2 at finite area, as a small extension to the result of Gadde, Rastelli, Razamat and…
Superconformal Indices, Sasaki-Einstein Manifolds, and Cyclic Homologies
Richard Eager, Johannes Schmude, Yuji Tachikawa
The superconformal index of the quiver gauge theory dual to type IIB string theory on the product of an arbitrary smooth Sasaki-Einstein manifold with five-dimensional AdS space is…
Quantum Higgs branches of isolated N=2 superconformal field theories
Philip C. Argyres, Kazunobu Maruyoshi, Yuji Tachikawa
We study the Higgs branches of the superconformal points of four-dimensional N=2 super Yang-Mills (SYM) which appear due to the occurrence of mutually local monopoles having approp…
Nilpotent orbits and codimension-two defects of 6d N=(2,0) theories
Oscar Chacaltana, Jacques Distler, Yuji Tachikawa
We study the local properties of a class of codimension-2 defects of the 6d N=(2,0) theories of type J=A,D,E labeled by nilpotent orbits of a Lie algebra \mathfrak{g}, where \mathf…