Olof Ohlsson Sax

All-loop Bethe ansatz equations for AdS3/CFT2

A bstractUsing the S-matrix for the

On the massless modes of the AdS3/CFT2 integrable systems

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

Finite size effects for giant magnons on physical strings

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

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

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

Dressing phases of AdS3/CFT2

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.

A dynamic

A bstractWe make a proposal for incorporating massless modes into the spin-chain of the AdS3/CF T2 integrable system. We do this by considering the α → 0 limit of the alternating

su{(1|1)^2}

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

S-matrix for AdS3/CFT2

spin-chain constructed in arXiv:1106.2558. In the process we encounter integrable spin-chains with non-irreducible representations at some of thei r sites. We investigate their properties and construct their R-matrices in terms of Yangians.

The generalized cusp in AdS(4) x CP3 and more one-loop results from semiclassical strings

Using finite gap methods, we find the leading order finite size corrections for an arbitrary number of giant magnons on physical strings, where the sum of the momenta is a multiple of 2π. Our results are valid for the Hofman–Maldacena fundamental giant magnons as well as their dyonic generalizations. The energy corrections turn out to be surprisingly simple, especially if all the magnons are fundamental, and at leading order are independent of the magnon flavors. We also show how to use the Bethe ansatz to find finite size corrections for dyonic giant magnons with large R-charges.

The complete worldsheet S matrix of superstrings on AdS3×S3×T4 with mixed three-form flux

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