A remark on alpha vacua for quantum field theories on de Sitter space

2005/03/02 by Romeo Brunetti, Klaus Fredenhagen, Stefan Hollands · 3 citations
Mathematics · Physics and Astronomy · #Advanced Operator Algebra Research #De Sitter space #De Sitter universe #Field (mathematics) #Noncommutative and Quantum Gravity Theories #Observable #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum field theory #Space (punctuation) #Vacuum state #de Sitter invariant special relativity #hep-th

paper · pdf · doi:10.1088/1126-6708/2005/05/063

published as JHEP0505:063,2005

arxiv created 2005/03/02 · openalex publication_date 2005/05/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

It is shown that the so-called α-vacua which have been proposed as candidates for states of free quantum fields on de Sitter space have infinitely strong fluctuations for typical observables as averaged renormalized energy momentum tensor.

Citations

• α-states in de Sitter space

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