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ID: 313855.0, MPI für Gravitationsphysik / Duality & Integrable Structures
A Crossing-Symmetric Phase for AdS5 x S5 Strings
Authors:Beisert, Niklas; Hernandez, Rafael; Lopez, Esperanza
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Journal of High Energy Physics
Volume:0611
Sequence Number of Article:070
Review Status:not specified
Audience:Not Specified
Abstract / Description:We propose an all-order perturbative expression for the dressing phase of the AdS_5 x S^5 string S-matrix at strong coupling. Moreover, we are able to sum up large parts of this expression. This allows us to start the investigation of the analytic structure of the phase at finite coupling revealing a few surprising features. The phase obeys all known constraints including the crossing relation and it matches with the known physical data at strong coupling. In particular, we recover the bound states of giant magnons recently found by Hofman and Maldacena as poles of the scattering matrix. At weak coupling our proposal seems to differ with gauge theory. A possible solution to this disagreement is the inclusion of additional pieces in the phase not contributing to crossing, which we also study.
External Publication Status:published
Document Type:Article
Communicated by:Niklas Beisert
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
MPI für Gravitationsphysik/Duality & Integrable Structures
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