We discuss some of the issues arising when considering asymptotically de Sitter space–
times and attempts to address them. Our development begins at the classical level where …

A bstract We study the fundamentals of quantum field theory on a rigid de Sitter space. We
show that the perturbative expansion of late-time correlation functions to all orders can be …

A bstract We study two-point functions of symmetric traceless local operators in the bulk of
de Sitter spacetime. We derive the Källén-Lehmann spectral decomposition for any spin and …

We propose a new model of low dimensional de Sitter holography in the form of a pair of
double-scaled SYK models at infinite temperature coupled via an equal energy constraint …

A bstract 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 …

A bstract We obtain microstates accounting for the Gibbons-Hawking entropy in dS 3, along
with a subleading logarithmic correction, from the solvable T\(\overline {T}\)+ Λ 2 deformation …

A bstract In three-dimensional de Sitter space classical black holes do not exist, and the
Schwarzschild-de Sitter solution instead describes a conical defect with a single …

A bstract We propose an algorithm which builds a concrete dual for large-radius 3d de Sitter
with a timelike York boundary for both gravity and bulk effective fields. This generalizes the …

A bstract The central dogma of black hole physics—which says that from the outside a black
hole can be described in terms of a quantum system with exp (Area/4G N) states evolving …

A bstract This paper expands on two recent proposals,[12, 13] and [14], for generalizing the
Ryu-Takayanagi and Hubeny-Rangamani-Takayanagi formulas to de Sitter space. The …