The entropy of supersymmetric black holes in string theory compactifications can be related to that of a D- or M-brane system, which in many cases can be further reduced to a two-dimensional conformal field theory (2d CFT). For black holes in M-theory, this relation involves a decoupling limit where the black hole mass diverges. We suggest that moving away from this limit corresponds to a specific irrelevant perturbation of the 2d CFT, namely the supersymmetric completion of the T \bar{T} deformation. We demonstrate that the black hole mass matches precisely with the T \bar{T} deformed energy levels, upon identifying the T \bar{T} deformation parameter with the inverse of the leading term of the black hole mass. We discuss implications of this novel realization of the T \bar{T} deformation, including a Hagedorn temperature for wrapped M5-branes.
Zoom link: https://icts-res-in.zoom.us/j/88092766911?pwd=R3ZrVk9yeW96ZmQ4ZG9KRzVhenRKZz09
Meeting ID: 880 9276 6911
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