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

Borsato, R., Sax, O. O., Sfondrini, A., Stefanski, B. & Torrielli, A. (2013). The all-loop integrable spin-chain for strings on AdS3 × S 3 × T 4: The massive sector. Journal of High Energy Physics, 2013(8), doi: 10.1007/JHEP08(2013)043

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Abstract

We bootstrap the all-loop dynamic S-matrix for the homogeneous psu (1, 1|2)2 spin-chain believed to correspond to the discretization of the massive modes of string theory on AdS3 × S 3 × T 4. The S-matrix is the tensor product of two copies of the su (1|1)2 invariant S-matrix constructed recently for the d (2, 1; α)2 chain, and depends on two anti-symmetric dressing phases. We write down the crossing equations that these phases have to satisfy. Furthermore, we present the corresponding Bethe Ansatz, which differs from the one previously conjectured, and discuss how our construction matches several recent perturbative calculations.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: School of Engineering & Mathematical Sciences > Department of Mathematical Science
URI: http://openaccess.city.ac.uk/id/eprint/2776

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