237 citations · 723 across the 16 of their papers we have counts for
16 papers
Giant graviton expansion for general Wilson line operator indices
Yosuke Imamura, Akihiro Sei, Daisuke Yokoyama
We propose a giant graviton expansion for Wilson line operator indices in general representations. The inserted line operators are specified by power sum symmetric polynomials $p_λ…
Simple-Sum Giant Graviton Expansions for Orbifolds and Orientifolds
Shota Fujiwara, Yosuke Imamura, Tatsuya Mori +2
We study giant graviton expansions of the superconformal index of 4d orbifold/orientifold theories. In general, a giant graviton expansion is given as a multiple sum over wrapping…
An introduction to 2d conformal field theory
Satoshi Nawata, Runkai Tao, Daisuke Yokoyama
These lecture notes provide a comprehensive introduction to 2d conformal field theory, covering foundational topics such as free fields, minimal models, Zamolodchikov's -theorem…
A Concise Course in String Theory
Satoshi Nawata, Runkai Tao, Daisuke Yokoyama
These lecture notes offer a concise introduction to string theory, based on a one-semester graduate course taught at Fudan University, and develop the subject from the string sigma…
Finite- corrections to the M-brane indices
Reona Arai, Shota Fujiwara, Yosuke Imamura +2
We investigate finite- corrections to the superconformal indices of the theories realized on M2- and M5-branes. For three-dimensional theories realized on a stack of M2-bran…
Resumming perturbative series in the presence of monopole bubbling effects
Masazumi Honda, Daisuke Yokoyama
Monopole bubbling effect is screening of magnetic charges of singular Dirac monopoles by regular 't Hooft-Polyakov monopoles. We study properties of weak coupling perturbative seri…
Localization of supersymmetric field theories on non-compact hyperbolic three-manifolds
Benjamin Assel, Dario Martelli, Sameer Murthy +1
We study supersymmetric gauge theories with an R-symmetry, defined on non-compact, hyperbolic, Riemannian three-manifolds, focusing on the case of a supersymmetry-preserving quotie…
Supersymmetry Enhancement and Junctions in S-folds
Yosuke Imamura, Hirotaka Kato, Daisuke Yokoyama
We study supersymmetry enhancement from to proposed by Aharony and Tachikawa by using string junctions in S-folds. The central charges carried by junction…
2d (0,2) Quiver Gauge Theories and D-Branes
Sebastian Franco, Dongwook Ghim, Sangmin Lee +2
We initiate a systematic study of 2d (0,2) quiver gauge theories on the worldvolume of D1-branes probing singular toric Calabi-Yau 4-folds. We present an algorithm for efficiently…
Geometric free energy of toric AdS4/CFT3 models
Sangmin Lee, Daisuke Yokoyama
We study the supersymmetric free energy of three dimensional Chern-Simons-matter theories holographically dual to AdS times toric Sasaki-Einstein seven-manifolds. In the large…
Factorization of S^3/Z_n partition function
Yosuke Imamura, Hiroki Matsuno, Daisuke Yokoyama
We investigate S^3/Z_n partition function of 3d N = 2 supersymmetric field theories. In a gauge theory the partition function is the sum of the contributions of sectors specified b…
Effective field theory approach to quasi-single field inflation and effects of heavy fields
Toshifumi Noumi, Masahide Yamaguchi, Daisuke Yokoyama
We apply the effective field theory approach to quasi-single field inflation, which contains an additional scalar field with Hubble scale mass other than inflaton. Based on the tim…
S^3/Z_n partition function and dualities
Yosuke Imamura, Daisuke Yokoyama
We investigate S^3/Z_n partition function of N = 2 supersymmetric gauge theories. A gauge theory on the orbifold has degenerate vacua specified by the holonomy. The partition funct…
Supersymmetric DBI inflation
Shin Sasaki, Masahide Yamaguchi, Daisuke Yokoyama
We discuss a supersymmetric version of DBI (Dirac-Born-Infeld) inflation, which is a typical inflation model in string cosmology. The supersymmetric DBI action together with a supe…
N=2 supersymmetric theories on squashed three-sphere
Yosuke Imamura, Daisuke Yokoyama
We investigate a squashing deformation of 3d N=2 supersymmetric theories on three-sphere, which have four supercharges. The deformation preserves SU(2)_L x U(1)_r isometry and all…
Superconformal index for large N quiver Chern-Simons theories
Yosuke Imamura, Daisuke Yokoyama, Shuichi Yokoyama
We investigate the N=2 superconformal index for supersymmetric quiver Chern-Simons theories with large N gauge groups. After general arguments about the large N limit, we compute t…