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Résumé |
I will review the recent progress in computing the exact spectrum of closed strings in AdS3/CFT2 using
integrability. The spectrum is determined through a set of all-loop Bethe Equations, from which
one can find, for example, the protected closed string states and compare with supergravity results. Exact
agreement is found in the case of AdS3xS3xT4. For AdS3xS3xS3xS1 past supergravity calculations predicted
too many BPS states, many of which are not protected in string theory. I will discuss the current status of
these states. |
