101 citations · 1.1k across the 54 of their papers we have counts for
54 papers
Interactions of strings on a T-fold
Yuji Satoh, Yuji Sugawara
We consider the interactions of strings on T-folds from the world-sheet point of view which are exact in . As a concrete example, we take a model where the internal torus at th…
Notes on Vanishing Cosmological Constant without Bose-Fermi Cancellation
Yuji Satoh, Yuji Sugawara
In this article we discuss how one can systematically construct the point particle theories that realize the vanishing one-loop cosmological constant without the bose-fermi cancell…
Non-SUSY Heterotic String Vacua of Gepner Models with Vanishing Cosmological Constant
Koji Aoyama, Yuji Sugawara
We study a natural generalization of that given in [arXiv:2005.13198 [hep-th]] to heterotic string. Namely, starting from the generic Gepner models for Calabi-Yau 3-folds, we const…
Argyres-Douglas Theories, S-duality and AGT Correspondence
Takuya Kimura, Takahiro Nishinaka, Yuji Sugawara +1
We propose a Nekrasov-type formula for the instanton partition functions of four-dimensional N=2 U(2) gauge theories coupled to (A_1,D_{2n}) Argyres-Douglas theories. This is carri…
Non-Compact SCFT and Mock Modular Forms
Yuji Sugawara
One of interesting issues in two-dimensional superconformal field theories is the existence of anomalous modular transformation properties appearing in some non-compact superconfor…
Non-SUSY Gepner Models with Vanishing Cosmological Constant
Koji Aoyama, Yuji Sugawara
In this article we discuss a construction of non-SUSY type II string vacua with the vanishing cosmological constant at the one loop level based on the generic Gepner models for Cal…