Bilayer

Quantum mechanics

Theoretical physics

Linguistics

Philosophy

Mathematical physics

Biology

Boundary (topology)

De Sitter space

Materials science

Operating system

Biochemistry

Computer science

Limit (mathematics)

Genetics

Physics

Quantum entanglement

Nanotechnology

Membrane

Mathematics

Mathematical analysis

Quantum

Anti-de Sitter space

Monolayer

Mathematical economics

Chemistry

De Sitter universe

Universe

Space (punctuation)

Journal of High Energy Physics

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 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 horizons. After stating the rules for each, we apply them to a number of cases and show that they yield results expected on other grounds. The monolayer and bilayer proposals often give the same results, but in one particular situation they disagree. To definitively decide between them we need to understand more about the nature of the thermodynamic limit of holographic systems.

Entanglement in De Sitter space