Quantum computational complexity estimates the difficulty of constructing quantum states
from elementary operations, a problem of prime importance for quantum computation …

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 …

A bstract We study the entanglement islands and subsystem volume complexity
corresponding to the left/right entanglement of a conformal defect in d-dimensions in …

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\(T\overline {T}\) deformation of a 2 dimensional field theory living on a curved
space-time is equivalent to coupling the undeformed field theory to 2 dimensional 'ghost …

In this paper, we have analyzed the information paradox and its resolution using the island
proposal in Schwarzschild de-Sitter black hole spacetime. First, we study the information …

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 …

We show that the entropy of cosmological perturbations originating as quantum vacuum
fluctuations in the very early universe, including the contribution of the leading nonlinear …

A bstract We consider small perturbations to a static three-dimensional de Sitter geometry.
For early enough perturbations that satisfy the null energy condition, the result is a …

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 …