Seeding the vacuum with entropy: the Chaplygin-like vacuum hypothesis

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Bertolami, O (Autor) FCUP

Revista

Título: Classical and Quantum Gravity

Vol. 40

ISSN: 0264-9381

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-00Y-S0N

DOI: 10.1088/1361-6382/aceacb

Abstract (EN): It is proposed that the vacuum admits two different phases as described by the Chaplygin equation of state or its generalised version: a phase where the energy density behaves as if dominated by non-relativistic matter and a de Sitter phase. The particle production due to the expansion that takes place at the matter-like phase can generate entanglement entropy and provide, through interactions, the environment that turn gravitational quantum features into classical ones. In the ensued de Sitter phase, the cosmological constant can be suppressed by inflation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9