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Short Strings in Three-Dimensional Anti-de Sitter Space: From Weak to Strong Coupling
Simon Ekhammar1,2, Nikolay Gromov1, Bogdan Stefański3
1King's College London, Department of Mathematics, Strand WC2R 2LS, London, United Kingdom.
Abstract:
We numerically solve the conjectured quantum spectral curve for strings on AdS_{3}×S^{3}× T^{4} with Ramond-Ramond charge from weak to strong coupling. At strong coupling, the spectrum organizes into flat-space string mass levels with universal square-root scaling in the string tension at leading order, and additional Kaluza-Klein fine-splitting at subleading order. At weak coupling, the energies are determined by a nearest-neighbor Bethe Ansatz, with universal subleading corrections that are suppressed at large volume.
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