Four Dimensional Gravity Forward Model in a Deep Reservoir
نویسندگان
چکیده
منابع مشابه
Matrix model formulation of four dimensional gravity
The problem of constructing a quantum theory of gravity has been tackled with very different strategies. An attractive possibility is that of encoding all possible space-times as specific Feynman diagrams of a suitable field theory as it happens for the matrix model formulation of two-dimensional quantum gravity (see for example [1] and references therein). In the perturbative approach to the m...
متن کاملFour-Dimensional Entropy from Three-Dimensional Gravity.
At the horizon of a black hole, the action of (3+1)-dimensional loop quantum gravity acquires a boundary term that is formally identical to an action for three-dimensional gravity. I show how to use this correspondence to obtain the entropy of the (3+1)-dimensional black hole from well-understood conformal field theory computations of the entropy in (2+1)-dimensional de Sitter space.
متن کاملWilson loops in four-dimensional quantum gravity.
A Wilson loop is defined, in 4-D pure Einstein gravity, as the trace of the holonomy of the Christoffel connection or of the spin connection, and its invariance under the symmetry transformations of the action is showed (diffeomorphisms and local Lorentz transformations). We then compute the loop perturbatively, both on a flat background and in the presence of an external source; we also allow ...
متن کاملScaling Structures in Four-dimensional Simplicial Gravity
H.S.Egawa , T.Hotta , T.Izubuchi b N.Tsuda c and T.Yukawa c, d a Department of Physics, Tokai University Hiratsuka, Kanagawa 259-12, Japan b Department of Physics, University of Tokyo Bunkyo-ku, Tokyo 113, Japan c National Laboratory for High Energy Physics (KEK), Tsukuba 305, Japan d Coordination Center for Research and Education, The Graduate University for Advanced Studies, Hayama-cho, Miura...
متن کاملScaling in Four Dimensional Quantum Gravity
We discuss scaling relations in four dimensional simplicial quantum gravity. Using numerical results obtained with a new algorithm called \baby universe surgery" we study the critical region of the theory. The position of the phase transition is given with high accuracy and some critical exponents are measured. Their values prove that the transition is continuous. We discuss the properties of t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Earth Science
سال: 2020
ISSN: 2296-6463
DOI: 10.3389/feart.2020.00285