Recent theoretical progress indicates that spacetime and gravity emerge together from the
entanglement structure of an underlying microscopic theory. These ideas are best understood …

We study the semi-classical thermodynamics of two-dimensional de Sitter space (dS 2) in
Jackiw-Teitelboim (JT) gravity coupled to conformal matter. We extend the quasi-local …

The dyonic 1/4-BPS states in 4D string theory with Script N= 4 spacetime supersymmetry are
counted by a Siegel modular form. The pole structure of the modular form leads to a contour …

We investigate the fine-grained entropy of the de Sitter cosmological horizon. Starting from
three-dimensional pure de Sitter space, we consider a partial reduction approach, which …

We consider the uncertainty in the arm length of an interferometer due to metric fluctuations
from the quantum nature of gravity, proposing a concrete microscopic model of energy …

The appearance of a generalized (or Borcherds-) Kac-Moody algebra in the spectrum of BPS
dyons in N= 4, d= 4 string theory is elucidated. From the low-energy supergravity analysis, …

We present a quantitative and fully non-perturbative description of the ergodic phase of quantum
chaos in the setting of two-dimensional gravity. To this end we describe the doubly non-…

In this paper, we discuss whether black hole entropy counts short or long-range microstates
in quantum gravity. In brick wall and induced gravity models, the entropy arises due to short …

We study conformal field theories with a finite number of primary fields with respect to some
chiral algebra. It is shown that the fusion rules are completely determined by the behavior of …

We study the problem of spatially stabilizing four dimensional extremal black holes in background
electric/magnetic fields. Whilst looking for stationary stable solutions describing black …