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Relativistie Cosmology With Quantum Corrections
Author(s) -
Müller Volker,
Schmidt HansJürgen
Publication year - 1991
Publication title -
fortschritte der physik/progress of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.2190390403
Subject(s) - physics , general relativity , scalar field , initial singularity , theoretical physics , cosmology , curvature , inflation (cosmology) , einstein , classical mechanics , equivalence principle (geometric) , singularity , scalar (mathematics) , mathematical physics , quantum cosmology , gravitation , quantum gravity , quantum , universe , quantum mechanics , de sitter universe , mathematics , geometry
Homogeneous isotropic, anisotropic, and inhomogeneous cosmological models are studied using Einstein's general relativity with quntum corrections in field theoretical approximation. In particular we discuss coherent scalar fields and curvature squared terms in the gravitational Lagrangian. The conformal equivalence of the field equations of fourth order to general relativity with a scalar field as source is an example of the geometrization of a matter field. The aemiclassical quantum eorrections of the scalar fields can avoid the initial cosmological singularity and they lead to an inflationary evolution stage as transient attrator. The review provides new points of view on questions like the probability of the inflationary stage and the question of mechanisms for multiple inflation.