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On the spectrum of AdS3 x S3 x T4 strings with Ramond-Ramond flux | | Riccardo Borsato
; Olof Ohlsson Sax
; Alessandro Sfondrini
; Bogdan Stefanski
; | | Date: |
2 May 2016 | | Abstract: | We analyze the spectrum of perturbative closed strings on AdS3 x S3 x T4 with
Ramond-Ramond flux using integrable methods. By solving the crossing equations
we determine the massless and mixed-mass dressing factors of the worldsheet S
matrix and derive the Bethe equations. Using these, we construct the underlying
integrable spin chain and show that it reproduces the reducible spin chain
conjectured at weak coupling in arXiv:1211.1952. We find that the string-theory
massless modes are described by gapless excitations of the spin chain. The
resulting degeneracy of vacua matches precisely the protected supergravity
spectrum found by de Boer. | | Source: | arXiv, 1605.0518 | | Services: | Forum | Review | PDF | Favorites | |
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