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On the spectrum of AdS(3) x S-3 x T-4 strings with Ramond-Ramond flux
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
Number of Authors: 4
2016 (English)In: Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, E-ISSN 1751-8121, Vol. 49, no 41, 41LT03Article in journal (Refereed) Published
Abstract [en]

We analyze the spectrum of perturbative closed strings on AdS(3) x S-3 x T-4 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 Olof Ohlsson S, Bogdan S Jr and Torrielli A 2013 (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.

Place, publisher, year, edition, pages
2016. Vol. 49, no 41, 41LT03
Keyword [en]
integrable strings, Bethe equations, spectral problem
National Category
Physical Sciences Mathematics
Identifiers
URN: urn:nbn:se:su:diva-135229DOI: 10.1088/1751-8113/49/41/41LT03ISI: 000384566300019OAI: oai:DiVA.org:su-135229DiVA: diva2:1046001
Available from: 2016-11-11 Created: 2016-11-01 Last updated: 2016-11-11Bibliographically approved

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Ohlsson Sax, Olof
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Nordic Institute for Theoretical Physics (Nordita)
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