Results 31 to 40 of about 37,362 (307)

Lessons of quantum 2D dilaton gravity [PDF]

open access: yesPhysics Letters B, 1995
13 pages ...
de Alwis, S. P., MacIntire, D. A.
openaire   +2 more sources

The two-sphere partition function from timelike Liouville theory at three-loop order

open access: yesJournal of High Energy Physics, 2022
While the Euclidean two-dimensional gravitational path integral is in general highly fluctuating, it admits a semiclassical two-sphere saddle if coupled to a matter CFT with large and positive central charge. In Weyl gauge this gravity theory is known as
Beatrix Mühlmann
doaj   +1 more source

Relational observables in 2D quantum gravity [PDF]

open access: yesPhysical Review D, 2007
Local observation is an important problem both for the foundations of a quantum theory of gravity and for applications to quantum-cosmological problems such as eternal inflation. While gauge invariant local observables can't be defined, it has been argued that appropriate relational observables approximately reduce to local observables in certain ...
Gary, Michael, Giddings, Steven B.
openaire   +2 more sources

The two-sphere partition function in two-dimensional quantum gravity

open access: yesJournal of High Energy Physics, 2021
We study the Euclidean path integral of two-dimensional quantum gravity with positive cosmological constant coupled to conformal matter with large and positive central charge.
Dionysios Anninos   +2 more
doaj   +1 more source

Towards unified theory of 2d gravity [PDF]

open access: yesNuclear Physics B, 1992
67 pages (October 1991)
Kharchev, S.   +4 more
openaire   +2 more sources

Effects of Gravity and Inlet/Outlet Location on a Two-Phase Cocurrent Imbibition in Porous Media

open access: yesJournal of Applied Mathematics, 2011
We introduce 2D numerical investigations of the problem of gravity and inlet/outlet location effects of water-oil two-phase cocurrent imbibition in a porous medium. Three different cases of side-, top-, and bottom-inlet location are considered.
M. F. El-Amin, Shuyu Sun
doaj   +1 more source

The price of curiosity: information recovery in de Sitter space

open access: yesJournal of High Energy Physics, 2021
Recent works have revealed that quantum extremal islands can contribute to the fine-grained entropy of black hole radiation reproducing the unitary Page curve.
Lars Aalsma, Watse Sybesma
doaj   +1 more source

2D Stress Tensor for 4D Gravity

open access: yesPhysical Review Letters, 2017
12 pages.
Kapec, Daniel   +3 more
openaire   +4 more sources

2d TQFTs and baby universes

open access: yesJournal of High Energy Physics, 2021
In this work, we extend the 2d topological gravity model of [1] to have as its bulk action any open/closed TQFT obeying Atiyah’s axioms. The holographic duals of these topological gravity models are ensembles of 1d topological theories with random ...
John Gardiner, Stathis Megas
doaj   +1 more source

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