The Information Geometry of Space and Time
Caticha, Ariel
arXiv, 0508108 / Harvested from arXiv
Is the geometry of space a macroscopic manifestation of an underlying microscopic statistical structure? Is geometrodynamics - the theory of gravity - derivable from general principles of inductive inference? Tentative answers are suggested by a model of geometrodynamics based on the statistical concepts of entropy, information geometry, and entropic dynamics. The model shows remarkable similarities with the 3+1 formulation of general relativity. For example, the dynamical degrees of freedom are those that specify the conformal geometry of space; there is a gauge symmetry under 3d diffeomorphisms; there is no reference to an external time; and the theory is time reversible. There is, in adition, a gauge symmetry under scale transformations. I conjecture that under a suitable choice of gauge one can recover the usual notion of a relativistic space-time.
Publié le : 2005-08-26
Classification:  General Relativity and Quantum Cosmology,  Mathematical Physics,  Physics - Classical Physics
@article{0508108,
     author = {Caticha, Ariel},
     title = {The Information Geometry of Space and Time},
     journal = {arXiv},
     volume = {2005},
     number = {0},
     year = {2005},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0508108}
}
Caticha, Ariel. The Information Geometry of Space and Time. arXiv, Tome 2005 (2005) no. 0, . http://gdmltest.u-ga.fr/item/0508108/