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Cosmological constant—the weight of the vacuum
Recent cosmological observations suggest the existence of a positive cosmological constant
Λ with the magnitude Λ (Gℏ/c3)≈ 10− 123. This review discusses several aspects of the …
Λ with the magnitude Λ (Gℏ/c3)≈ 10− 123. This review discusses several aspects of the …
Snowmass white paper: the cosmological bootstrap
This white paper summarizes recent progress in the cosmological bootstrap, an approach to
the study of the statistics of primordial fluctuations from consistency with unitarity, locality and …
the study of the statistics of primordial fluctuations from consistency with unitarity, locality and …
On de Sitter spacetime and string theory
We review various aspects of de Sitter spacetime in string theory: its status as an Effective
Field Theory spacetime solution, its relation to the vacuum energy problem in string theory …
Field Theory spacetime solution, its relation to the vacuum energy problem in string theory …
From dS to AdS and back
A bstract We describe in more detail the general relation uncovered in our previous work
between boundary correlators in de Sitter (dS) and in Euclidean anti-de Sitter (EAdS) space …
between boundary correlators in de Sitter (dS) and in Euclidean anti-de Sitter (EAdS) space …
Non-Gaussian features of primordial fluctuations in single field inflationary models
We compute the three point correlation functions for primordial scalar and tensor fluctuations
in single field inflationary models. We obtain explicit expressions in the slow roll limit where …
in single field inflationary models. We obtain explicit expressions in the slow roll limit where …
Lecture notes on holographic renormalization
We review the formalism of holographic renormalization. We start by discussing
mathematical results on asymptotically anti-de Sitter (AdS) spacetimes. We then outline the …
mathematical results on asymptotically anti-de Sitter (AdS) spacetimes. We then outline the …
From AdS to dS exchanges: Spectral representation, Mellin amplitudes, and crossing
In this paper we take the first steps towards bridging the gap between the conformal and
cosmological bootstrap programs. We present a simple general relation between tree-level …
cosmological bootstrap programs. We present a simple general relation between tree-level …
Low-dimensional de Sitter quantum gravity
A bstract We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional
nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three …
nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three …
Higher spin realization of the dS/CFT correspondence
We conjecture that Vasiliev's theory of higher spin gravity in four-dimensional de Sitter space
(dS 4) is holographically dual to a three-dimensional conformal field theory (CFT 3) living on …
(dS 4) is holographically dual to a three-dimensional conformal field theory (CFT 3) living on …
Integral geometry and holography
A bstract We present a mathematical framework which underlies the connection between
information theory and the bulk spacetime in the AdS 3/CFT 2 correspondence. A key …
information theory and the bulk spacetime in the AdS 3/CFT 2 correspondence. A key …