Bremen 2017 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 13: Grundlegende Probleme und allgemeiner Formalismus

GR 13.6: Vortrag

Donnerstag, 16. März 2017, 15:40–15:55, SFG 0140

Matter Ordered by Quantum Phase Fields: Emergent Gravity in a Dynamic Universe — •Ingo Steinbach — Ruhr-University Bochum

The question of quantum gravity is approached from a new point of view. The phase field concept, which is successfully applied in certain condensed matter problems [Steinbach & Pezzolla, Physica D, 1999], will be generalized to a quantum phase field concept. It is applicable to matter in general, formulated in terms of a variational principle. The new concept [I. Steinbach, Z. Naturforschung A, to be published] has energy as the only fundamental substance. Different states of energy are ordered by a discrete set of quantum phase fields. The dual elements of matter, mass and space, are described as volume- and gradient-energy contributions of the set of fields, respectively. Time and space are formulated as background-independent dynamic variables. The evolution equations of the fields and the wave-function of the universe are derived in quasi-static approximation. Gravitational interaction emerges from quantum fluctuations in finite space. Application to a large number of fields predicts scale separation in space and repulsive action of masses distant beyond a marginal distance. The predicted marginal distance is compared to the size of the voids in the observable universe.