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Argyres-Seiberg duality and the Higgs branch
Davide Gaiotto, Andrew Neitzke, Yuji Tachikawa
We demonstrate the agreement between the Higgs branches of two N=2 theories proposed by Argyres and Seiberg to be S-dual, namely the SU(3) gauge theory with six quarks, and the SU(…
A counterexample to the a-'theorem'
Alfred D. Shapere, Yuji Tachikawa
The conclusion of the original paper was wrong, due to the incorrect assumption that the low-energy limit at the strongly-coupled point consists of a single, coupled SCFT. By takin…
Classification of N=6 superconformal theories of ABJM type
Martin Schnabl, Yuji Tachikawa
Studying the supersymmetry enhancement mechanism of Aharony, Bergman, Jafferis and Maldacena, we find a simple condition on the gauge group generators for the matter fields. We ana…
Comments on string theory backgrounds with non-relativistic conformal symmetry
Juan Maldacena, Dario Martelli, Yuji Tachikawa
We consider non-relativistic conformal quantum mechanical theories that arise by doing discrete light cone quantization of field theories. If the field theory has a gravity dual, t…
Central charges of N=2 superconformal field theories in four dimensions
Alfred D. Shapere, Yuji Tachikawa
We present a general method for computing the central charges a and c of N=2 superconformal field theories corresponding to singular points in the moduli space of N=2 gauge theorie…