The work of M.S. is supported in part by DOE grant DE-SC0011842. The work of A.Y. was supported by
William I. Fine Theoretical Physics Institute, University of Minnesota, by Russian Foundation for Basic Research Grant #13-02-00042a and by Russian State Grant for Scientific Schools RSGSS-657512010.2.
The work of A.Y. was supported by the Russian Scientific Foundation Grant # 14-22-00281.
Citation:
M. Shifman, A. Yung, “Non-Abelian vortex in four dimensions as a critical Superstring”, Pis'ma v Zh. Èksper. Teoret. Fiz., 105:1 (2017), 53–54; JETP Letters, 105:1 (2017), 60–68