Riccardo Borsato

S-matrix for strings on η-deformed AdS5 × S5

A bstractWe determine the bosonic part of the superstring sigma model Lagrangian on η-deformed AdS5 × S5, and use it to compute the perturbative world-sheet scattering matrix of bosonic particles of the model. We then compare it with the large string tension limit of the q-deformed S-matrix and find exact agreement.

All-loop Bethe ansatz equations for AdS3/CFT2

A bstractUsing the S-matrix for the

The all-loop integrable spin-chain for strings on AdS3 × S 3 × T 4: the massive sector

\mathfrak{d}{{\left( {2,\ 1;\ \alpha } \right)}^2}

Dressing phases of AdS3/CFT2

symmetric spin-chain of AdS3/CFT2, we propose a new set of all-loop Bethe equations for the system. These equations differ from the ones previously found in the literature by the choice of relative grading between the two copies of the

A dynamic

\mathfrak{d}\left( {2,\ 1;\ \alpha } \right)

su{(1|1)^2}

superalgebra, and involve four undetermined scalar factors that play the role of dressing phases. Imposing crossing symmetry and comparing with the near-BMN form of the S-matrix found in the literature, we find several novel features. In particular, the scalar factors must differ from the Beisert-Eden-Staudacher phase, and should couple nodes of different masses to each other. In the semiclassical limit the phases are given by a suitable generalization of Arutyunov-Frolov-Staudacher phase.

S-matrix for AdS3/CFT2

A bstractWe bootstrap the all-loop dynamic S-matrix for the homogeneous

Puzzles of eta-deformed AdS_5 x S^5

\mathfrak{p}\mathfrak{s}\mathfrak{u}

The complete AdS 3 S 3 T 4 worldsheet S-matrix

(1, 1|2)2 spin-chain believed to correspond to the discretization of the massive modes of string theory on AdS3 × S3 × T4. The S-matrix is the tensor product of two copies of the

Target space supergeometry of η and λ-deformed strings

\mathfrak{s}\mathfrak{u}