Late-time dominance of entanglement islands plays a critical role in addressing the
information paradox for black holes in AdS coupled to an asymptotic non-gravitational bath …

We formulate a version of the information paradox in de Sitter spacetime and show that it is
solved by the emergence of entanglement islands in the context of the De Sitter/de Sitter …

Observers in de Sitter space can only access the space up to their cosmological horizon.
Assuming thermal equilibrium, we use the quantum Ryu–Takayanagi or island formula to …

A bstract Recently, a codimension two holography called wedge holography is proposed as
a generalization of AdS/CFT. It is conjectured that a gravitational theory in d+ 1 dimensional …

A bstract We compute the length of spacelike geodesics anchored at opposite sides of
certain double-sided flow geometries in two dimensions. These geometries are …

A bstract The two-point function of a free massive scalar field on a fixed background can be
evaluated in the large mass limit by using a semiclassical geodesic approximation. In de …

These lecture notes provide an overview of different aspects of de Sitter space and their
plausible holographic interpretations. We start with a general description of the classical …

We compute the circuit complexity of scalar curvature perturbations on Friedmann-Lemaître-
Robertson-Walker cosmological backgrounds with a fixed equation of state w using the …

We propose a novel codimension-n holography, called cone holography, between a
gravitational theory in (d+ 1)-dimensional conical spacetime and a conformal field theory …

A bstract The\(T\overline {T}\)+ Λ 2 deformation of a Holographic CFT on a cylinder (or torus
in Euclidean signature) inhabits the stretched cosmological horizon in dS 3 when the …