Matches in SemOpenAlex for { <https://semopenalex.org/work/W4295693719> ?p ?o ?g. }
- W4295693719 abstract "We extend the method of adiabatic regularization by introducing an arbitrary parameter $mu$ for a scalar field with quartic self-coupling in a Friedmann-Lema^itre-Robertson-Walker (FLRW) spacetime at one-loop order. The subtraction terms constructed from this extended version allow us to define a preferred vacuum state at a fixed time $eta = eta_0$ for this theory. We compute this vacuum state for two commonly used background fields in cosmology. We also give a possible prescription for an adequate value for $mu$." @default.
- W4295693719 created "2022-09-14" @default.
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- W4295693719 date "2022-09-14" @default.
- W4295693719 modified "2023-09-27" @default.
- W4295693719 title "Adiabatic regularization and preferred vacuum state for the <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>λ</mml:mi><mml:msup><mml:mi>ϕ</mml:mi><mml:mn>4</mml:mn></mml:msup></mml:math> field theory in cosmological spacetimes" @default.
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- W4295693719 doi "https://doi.org/10.1103/physrevd.106.065015" @default.
- W4295693719 hasPublicationYear "2022" @default.
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