(01.12.) Microstate correlators from the worldsheet
Davide Bufalini (Southampton U.)
01.12.2022 at 16:15
To account for all the bulk microstates of a three-charge black hole, the supergravity approximation may not suffice and full control over string theory may be essential. Recently, a specific family of black hole microstates was shown to admit an exact string worldsheet description. The worldsheet theory is a coset of the well-studied AdS^3 × S^3 × T^4 model. This allows full control over the entire alpha-prime corrections. I will show how to construct the physical vertex operators of these coset models, and how to explicitly compute an extensive set of novel heavy-light correlators. Finally, I will present a closed formula for correlators with an arbitrary number “n” of light insertions on top of the microstate background, written as a function of the corresponding n-point function on pure AdS^3 × S^3 × T^4. A subset of these provides the first match between worldsheet correlators in black hole microstates and the holographically dual conformal field theory, in a highly non-trivial way.
Arnold Sommerfeld Center
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