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Unitarity problems for an effective field theory description of early universe cosmology

In the context of Effective Field Theory, the Hilbert space of states increases in an expanding universe. Hence, the time evolution cannot be unitary. The formation of structure is usually studied using effective field theory techniques. We study the constraints on effective field theory analyses of...

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Detalles Bibliográficos
Autores principales: Brandenberger, Robert, Kamali, Vahid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9477922/
https://www.ncbi.nlm.nih.gov/pubmed/36124290
http://dx.doi.org/10.1140/epjc/s10052-022-10783-2