λ-Deformed AdS5 × S5 superstring from 4D Chern-Simons theory

Abstract We present the construction of the λ-deformation of A d S 5 × S 5 superstring from the four dimensional Chern-Simons-type gauge theory. The procedure is applicable to all the semi-symmetric coset models and generalizes the previous construction of λ-deformation of the symmetric coset models.