Abstract
We discuss the main issues related to understanding closed string spectrum in Ramond-Ramond backgrounds on the example of AdS5 × S 5 and and its special limit – the maximally supersymmetric plane-wave background with constant null 5-form field strength. As we describe, in the latter case the spectrum can be found explicitly. We compare the plane-wave string spectrum with the expected form of the light-cone gauge spectrum of the AdS5 × S 5 superstring and comment on the tensionless string limit.
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Metsaev, R.R., Tseytlin, A.A. Superstrings in Curved Ramond-Ramond Backgrounds. Russian Physics Journal 45, 719–726 (2002). https://doi.org/10.1023/A:1021262000999
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DOI: https://doi.org/10.1023/A:1021262000999