5 papers · 1 filter
Small black hole in de Sitter as an observer
Guanda Lin, Haifeng Tang
We study the Euclidean path integral around magnetically charged lukewarm black holes in four-dimensional de Sitter space. We numerically determine the full one-loop spectrum of co…
Constrained particle on a group: from propagators to correlators
Guanda Lin
We develop a particle-on-a-group formulation of super-JT gravity aimed at computing supersymmetric correlators. We show that the (super)JT gravity can be described by a particle mo…
The evaporation of black holes in supergravity
Guanda Lin, Luca V. Iliesiu, Mykhaylo Usatyuk
In supergravity, charged rotating black holes are generically driven towards becoming extremal and supersymmetric through the emission of Hawking radiation. Eventually, as the blac…
How the Hilbert space of two-sided black holes factorises
Jan Boruch, Luca V. Iliesiu, Guanda Lin +1
In AdS/CFT, two-sided black holes are described by states in the tensor product of two Hilbert spaces associated with the two asymptotic boundaries of the spacetime. Understanding…
Revisiting the second order formalism of JT gravity
Guanda Lin, Mykhaylo Usatyuk
We revisit the gravity path integral formalism of JT gravity. We explain how to gauge fix the path integral in the presence of asymptotic boundaries and conical defects, and resolv…