What if string theory has no de Sitter vacua?

UH Danielsson, TV Riet - International Journal of Modern Physics D, 2018‏ - World Scientific
We present a brief overview of attempts to construct de Sitter vacua in string theory and
explain how the results of this 20-year endeavor could point to the fact that string theory …

The holographic principle

R Bousso - Reviews of Modern Physics, 2002‏ - APS
There is strong evidence that the area of any surface limits the information content of
adjacent spacetime regions, at 1.4× 10 69 bits per square meter. This article reviews the …

Quasi-local energy and microcanonical entropy in two-dimensional nearly de Sitter gravity

A Svesko, E Verheijden, EP Verlinde… - Journal of High Energy …, 2022‏ - Springer
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 …

Non-Gaussian features of primordial fluctuations in single field inflationary models

J Maldacena - Journal of High Energy Physics, 2003‏ - iopscience.iop.org
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 …

Lecture notes on holographic renormalization

K Skenderis - Classical and Quantum Gravity, 2002‏ - iopscience.iop.org
We review the formalism of holographic renormalization. We start by discussing
mathematical results on asymptotically anti-de Sitter (AdS) spacetimes. We then outline the …

The partial Bondi gauge: Further enlarging the asymptotic structure of gravity

M Geiller, C Zwikel - SciPost Physics, 2022‏ - scipost.org
We present a detailed analysis of gravity in a partial Bondi gauge, where only the three
conditions $ g_ {rr}= 0= g_ {rA} $ are fixed. We relax in particular the so-called determinant …

The Λ-BMS4 group of dS4 and new boundary conditions for AdS4

G Compère, A Fiorucci… - Classical and quantum …, 2019‏ - iopscience.iop.org
Using the dictionary between Bondi and Fefferman–Graham gauges, we identify the
analogues of the Bondi news, Bondi mass and Bondi angular momentum aspects at the …

Thermodynamic volumes and isoperimetric inequalities for de Sitter black holes

BP Dolan, D Kastor, D Kubizňák, RB Mann… - Physical Review D …, 2013‏ - APS
We consider the thermodynamics of rotating and charged asymptotically de Sitter (dS) black
holes. Using Hamiltonian perturbation-theory techniques, we derive three different first-law …

Black hole thermodynamics and negative entropy in de Sitter and anti-de Sitter Einstein–Gauss–Bonnet gravity

M Cvetič, S Nojiri, SD Odintsov - Nuclear Physics B, 2002‏ - Elsevier
We investigate the charged Schwarzschild–anti-de Sitter (SAdS) BH thermodynamics in 5d
Einstein–Gauss–Bonnet gravity with electromagnetic field. The Hawking–Page phase …

Exact solution of the harmonic oscillator in arbitrary dimensions with minimal length uncertainty relations

LN Chang, D Minic, N Okamura, T Takeuchi - Physical Review D, 2002‏ - APS
We determine the energy eigenvalues and eigenfunctions of the harmonic oscillator where
the coordinates and momenta are assumed to obey the modified commutation relations [xi …