Results 11 to 20 of about 61,982,689 (238)

Fuzzy de Sitter space [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We discuss properties of fuzzy de Sitter space defined by means of algebra of the de Sitter group $$\text {SO}(1,4)$$ SO(1,4) in unitary irreducible representations.
Maja Burić   +2 more
doaj   +4 more sources

Complexity in de Sitter space [PDF]

open access: yesClassical and Quantum Gravity, 2017
Abstract We consider the holographic complexity conjectures for de-Sitter invariant states in a quantum field theory on de Sitter space, dual to asymptotically anti-de Sitter geometries with de Sitter boundaries. The bulk holographic duals include solutions with or without a horizon.
Reynolds, Alan P., Ross, Simon F.
openaire   +5 more sources

Asymptotic freedom for $$\lambda \phi ^4_{\star }$$ λϕ⋆4 QFT in Snyder–de Sitter space [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We analyze the model of a self-interacting $$\phi ^4_{\star }$$ ϕ⋆4 scalar field theory in Snyder–de Sitter space. After analytically computing the one-loop beta functions in the small noncommutativity and curvature limit, we solve numerically the ...
S. A. Franchino-Viñas, S. Mignemi
doaj   +2 more sources

Quantum scalar field theory on anti-de Sitter space [PDF]

open access: yes, 2013
This thesis considers a real massive free quantum scalar field propagating with arbitrary coupling to $n$-dimensional anti-de Sitter space. Analytical expressions are found for the field modes and Feynman Green function.
Kent, Carl
core   +6 more sources

Einstein-Yang-Mills black holes in anti de-Sitter space [PDF]

open access: yes, 2012
In this thesis we consider Einstein-Yang-Mills black holes in asymptotically anti-de Sitter space, in the presence of an su(N) gauge eld. For a purely magnetic gauge eld we de ne a set of charges, namely the mass and N - 1 gauge invariant magnetic ...
Shepherd, Benjamin L
core   +6 more sources

Entanglement in De Sitter space

open access: yesJournal of High Energy Physics, 2022
Abstract 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 proposals (called the monolayer and bilayer proposals) are similar; both replace the boundary of AdS by the boundaries of static-patches — in other words event ...
Shaghoulian, Edgar, Susskind, Leonard
openaire   +4 more sources

The trouble with de Sitter space [PDF]

open access: yesJournal of High Energy Physics, 2003
15 pages, 1 figure. v2: added fifth section with comments on long time stability of de Sitter space, in which we argue that the lifetime can not exceed the Poincare recurrence time.
Goheer, Naureen   +2 more
openaire   +2 more sources

No absorption in de Sitter space [PDF]

open access: yesClassical and Quantum Gravity, 2003
11 pages ...
Myung, Y. S., Lee, H. W.
openaire   +3 more sources

De Sitter space and entanglement [PDF]

open access: yesClassical and Quantum Gravity, 2019
Abstract We argue that the notion of entanglement in de Sitter space arises naturally from the non-trivial Lorentzian geometry of the spacetime manifold, which consists of two disconnected boundaries and a causally disconnected interior. In four bulk dimensions, we propose an holographic description of an inertial
Cesar Arias, Felipe Diaz, Per Sundell
openaire   +2 more sources

Prescribed $k$-symmetric curvature hypersurfaces in de Sitter space [PDF]

open access: yes, 2020
We prove existence of compact spacelike hypersurfaces with prescribed k - curvature in de Sitter space, where the prescription function depends on both space and the tilt ...
Klingenberg, Wilhelm   +2 more
core   +1 more source

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