3 papers
hep-th2024
Off-Shell Strings II: Black Hole Entropy
Amr Ahmadain, Aron C. Wall
In 1994, Susskind and Uglum argued that it is possible to derive the Bekenstein-Hawking entropy from string theory. In this article we explain the conceptual underpinnings…
hep-th2024
Off-Shell Strings I: S-matrix and Action
Amr Ahmadain, Aron C. Wall
We explain why Tseytlin's off-shell formulation of string theory is well-defined. Although quantizing strings on an off-shell background requires an arbitrary choice of Weyl frame,…
gr-qc2024
Linearised Second Law for Higher Curvature Gravity and Non-Minimally Coupled Vector Fields
Aron C. Wall, Zihan Yan
Expanding the work of arXiv:1504.08040, we show that black holes obey a second law for linear perturbations to bifurcate Killing horizons, in any covariant higher curvature gravity…