Matches in SemOpenAlex for { <https://semopenalex.org/work/W4381330371> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W4381330371 endingPage "16LT01" @default.
- W4381330371 startingPage "16LT01" @default.
- W4381330371 abstract "Abstract The evolution of superhorizon curvature perturbations in a two-component interacting Universe is considered. It is found that adiabatic modes conserve the total curvature perturbation <?CDATA $zeta$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mi>ζ</mml:mi> </mml:math> , unless there are stages in which the rate of dissipation of one component into another is not constant. Moreover, our result shows that when the rate is varying it is possible for ‘isocurvature’ perturbations generated during reheating to alter the amplitude of an adiabatic curvature mode even when the mode is outside the horizon. Specifically, if an indefinitely large rate Γ for massive particles decaying into photons develops rapidly amid vanishingly small initial values (before decay) of the total curvature <?CDATA $zeta_i$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:msub> <mml:mi>ζ</mml:mi> <mml:mi>i</mml:mi> </mml:msub> </mml:math> and Newtonian potential <?CDATA $Phi_i$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:msub> <mml:mi mathvariant=normal>Φ</mml:mi> <mml:mi>i</mml:mi> </mml:msub> </mml:math> , such that the product <?CDATA $Gammazeta_i$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mi mathvariant=normal>Γ</mml:mi> <mml:msub> <mml:mi>ζ</mml:mi> <mml:mi>i</mml:mi> </mml:msub> </mml:math> and <?CDATA $GammaPhi_i$?> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML overflow=scroll> <mml:mi mathvariant=normal>Γ</mml:mi> <mml:msub> <mml:mi mathvariant=normal>Φ</mml:mi> <mml:mi>i</mml:mi> </mml:msub> </mml:math> become a pair of finite and universal constants for all superhorizon scales afterwards, Harrison–Zel’dovich scale-invariant power spectrum could be synthesized from a homogeneous state without inflation at all." @default.
- W4381330371 created "2023-06-21" @default.
- W4381330371 creator A5045056026 @default.
- W4381330371 creator A5049389591 @default.
- W4381330371 date "2023-07-18" @default.
- W4381330371 modified "2023-09-24" @default.
- W4381330371 title "Scale invariant curvature perturbations from a spontaneously decaying scalar field" @default.
- W4381330371 cites W1973861971 @default.
- W4381330371 cites W1977473468 @default.
- W4381330371 cites W1991203635 @default.
- W4381330371 cites W2012869970 @default.
- W4381330371 cites W2056720964 @default.
- W4381330371 cites W2059206864 @default.
- W4381330371 cites W2134251287 @default.
- W4381330371 cites W2134990923 @default.
- W4381330371 cites W2913883913 @default.
- W4381330371 cites W2917402338 @default.
- W4381330371 cites W2962987546 @default.
- W4381330371 cites W3102488676 @default.
- W4381330371 cites W4205397921 @default.
- W4381330371 cites W4206545389 @default.
- W4381330371 cites W4316661740 @default.
- W4381330371 doi "https://doi.org/10.1088/1361-6382/ace020" @default.
- W4381330371 hasPublicationYear "2023" @default.
- W4381330371 type Work @default.
- W4381330371 citedByCount "0" @default.
- W4381330371 crossrefType "journal-article" @default.
- W4381330371 hasAuthorship W4381330371A5045056026 @default.
- W4381330371 hasAuthorship W4381330371A5049389591 @default.
- W4381330371 hasBestOaLocation W43813303712 @default.
- W4381330371 hasConcept C11413529 @default.
- W4381330371 hasConcept C121332964 @default.
- W4381330371 hasConcept C195065555 @default.
- W4381330371 hasConcept C2524010 @default.
- W4381330371 hasConcept C33923547 @default.
- W4381330371 hasConcept C41008148 @default.
- W4381330371 hasConceptScore W4381330371C11413529 @default.
- W4381330371 hasConceptScore W4381330371C121332964 @default.
- W4381330371 hasConceptScore W4381330371C195065555 @default.
- W4381330371 hasConceptScore W4381330371C2524010 @default.
- W4381330371 hasConceptScore W4381330371C33923547 @default.
- W4381330371 hasConceptScore W4381330371C41008148 @default.
- W4381330371 hasIssue "16" @default.
- W4381330371 hasLocation W43813303711 @default.
- W4381330371 hasLocation W43813303712 @default.
- W4381330371 hasOpenAccess W4381330371 @default.
- W4381330371 hasPrimaryLocation W43813303711 @default.
- W4381330371 hasRelatedWork W1966599584 @default.
- W4381330371 hasRelatedWork W2935759653 @default.
- W4381330371 hasRelatedWork W3105167352 @default.
- W4381330371 hasRelatedWork W4292719350 @default.
- W4381330371 hasRelatedWork W4319339102 @default.
- W4381330371 hasRelatedWork W4319455194 @default.
- W4381330371 hasRelatedWork W54078636 @default.
- W4381330371 hasRelatedWork W1501425562 @default.
- W4381330371 hasRelatedWork W2954470139 @default.
- W4381330371 hasRelatedWork W3087075448 @default.
- W4381330371 hasVolume "40" @default.
- W4381330371 isParatext "false" @default.
- W4381330371 isRetracted "false" @default.
- W4381330371 workType "article" @default.