منابع مشابه
0 Se p 20 04 GEOMETRODYNAMICS : SPACETIME OR SPACE ?
The work in this thesis concerns the split of Einstein field equations (EFE’s) with respect to nowhere-null hypersurfaces, the GR Cauchy and Initial Value problems (CP and IVP), the Canonical formulation of GR and its interpretation, and the Foundations of Relativity. I address Wheeler’s question about the why of the form of the GR Hamiltonian constraint “from plausible first principles”. I con...
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We investigate the embedding variable approach to geometrodynamics advocated in work by Isham, Kuchař and Unruh for a general class of coordinate conditions that mirror the Isham-Kuchař Gaussian condition but allow for arbitrary algebraic complexity. We find that the same essential structure present in the ultralocal Gaussian condition is repeated in the general case. The resultant embedding– e...
متن کاملScale-invariant Gravity: Geometrodynamics
We present a scale-invariant theory, conformal gravity, which closely resembles the geometrodynamical formulation of general relativity (GR). While previous attempts to create scaleinvariant theories of gravity have been based on Weyl’s idea of a compensating field, our direct approach dispenses with this and is built by extension of the method of best matching w.r.t scaling developed in the pa...
متن کاملTowards a Statistical Geometrodynamics
Can the spatial distance between two identical particles be explained in terms of the extent that one can be distinguished from the other? Is the geometry of space a macroscopic manifestation of an underlying microscopic statistical structure? Is geometrodynamics derivable from general principles of inductive inference? Tentative answers are suggested by a model of geometrodynamics based on the...
متن کاملThe Superspace of Geometrodynamics
Wheeler’s Superspace is the arena in which Geometrodynamics takes place. I review some aspects of its geometrical and topological structure that Wheeler urged us to take seriously in the context of canonical quantum gravity. PACS 04.60.-m · 04.60.Ds · 02.40.-k Mathematics Subject Classification (2000) 83C45 · 57N10 · 53D20 “The stage on which the space of the Universe moves is certainly not spa...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2020
ISSN: 1757-899X
DOI: 10.1088/1757-899x/785/1/012040