Quantum Cosmology and Grand Unification
Giampiero Esposito, Alexander Yu. Kamenshchik, Gennaro Miele
TL;DR
This paper explores how quantum cosmology constraints, specifically normalizability of the universe's wave function, influence the selection of grand unified gauge models, favoring non-supersymmetric theories in a de Sitter background.
Contribution
It demonstrates that quantum cosmology criteria can restrict the class of viable grand unification models, emphasizing the role of normalizability at one-loop order.
Findings
Normalizability favors non-supersymmetric models.
Inflaton-matter interactions are crucial for model selection.
Quantum cosmology constrains gauge theories in a de Sitter background.
Abstract
Quantum cosmology may restrict the class of gauge models which unify electroweak and strong interactions. In particular, if one studies the normalizability criterion for the one-loop wave function of the universe in a de Sitter background one finds that the interaction of inflaton and matter fields, jointly with the request of normalizability at one-loop order, picks out non-supersymmetric versions of unified gauge models.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Particle physics theoretical and experimental studies