Results 71 to 80 of about 1,368,154 (362)
The concept of time in 2D quantum gravity [PDF]
Journal of High Energy Physics, 1998 14 pages, LaTeX, 2 ps ...
Ambjørn, Jan +3 more
openaire +4 more sources
Scientific Reports, 2021 Due to the independence of the gradiometer instrument’s orientation in space, the second invariant $$I_2$$ I 2 of gravity gradients in combination with individual gravity gradients are demonstrated to be valid for gravity field determination.
Lin Cai +6 more
doaj +1 more source
Planar maps, circle patterns and 2D gravity [PDF]
, 2013 Via circle pattern techniques, random planar triangulations (with angle variables) are mapped onto Delaunay triangulations in the complex plane. The uniform measure on triangulations is mapped onto a conformally invariant spatial point process.
F. David, B. Eynard
semanticscholar +1 more source
Four-dimensional cosmology from dilaton coupled quantum matter in two dimensions [PDF]
, 1997 The reduction of 4D Einstein gravity with $N$ minimal scalars leads to specific 2D dilaton gravity with dilaton coupled scalars. Applying s-wave and large $N$ approximation (where large $N$ quantum contribution due to dilaton itself is taken into account)
Kadoyoshi, Tomoko +2 more
core +2 more sources
2D Lorentzian Gravity as 2D Euclidean Gravity with Ising Spins
, 1996 Latex (6 Pages) and 4 postscript figures, uufiled ...
Beirl, W., Johnston, D. A.
openaire +2 more sources
Fermions in 2D Lorentzian Quantum Gravity
, 2003 We implement Wilson fermions on 2D Lorentzian triangulation and determine the spectrum of the Dirac-Wilson operator. We compare it to the spectrum of the corresponding operator in the Euclidean background. We use fermionic particle to probe the fractal properties of Lorentzian gravity coupled to $c=1/2$ and $c=4$ matter.
L. Bogacz, Z. Burda, J. Jurkiewicz
openalex +5 more sources
Extended 2d generalized dilaton gravity theories [PDF]
, 2007 We show that an anomaly-free description of matter in (1+1) dimensions requires a deformation of the 2d relativity principle, which introduces a non-trivial center in the 2d Poincare algebra.
de Mello, R. O.
core +3 more sources
Matrix integrals & finite holography
Journal of High Energy Physics, 2021 We explore the conjectured duality between a class of large N matrix integrals, known as multicritical matrix integrals (MMI), and the series (2m − 1, 2) of non-unitary minimal models on a fluctuating background.
Dionysios Anninos, Beatrix Mühlmann
doaj +1 more source
Dimensional reduction of 4d heterotic string black holes [PDF]
, 1999 We perform the spherical symmetric dimensional reduction $4d\to2d$ of heterotic string theory. We find a class of two-dimensional (2d) dilaton gravity models that gives a general description of the near-horizon, near-extremal behavior of four-dimensional
A. A. Tseytlin +37 more
core +2 more sources
Grey-body factors, irreversibility and multiple island saddles
Journal of High Energy Physics, 2022 We consider the effect of grey-body factors on the entanglement island prescription for computing the entropy of an arbitrary subset of the Hawking radiation of an evaporating black hole.
Timothy J. Hollowood +3 more
doaj +1 more source