FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2017230924> ?p ?o ?g. }

• W2017230924 abstract "The possibility that the scale-invariant inflationary spectrum may be modified due to the hidden assumptions about the Planck scale physics---dubbed as trans-Planckian inflation---has received considerable attention. To mimic the possible trans-Planckian effects, among various models, modified dispersion relations have been popular in the literature. In almost all the earlier analyses, unlike the canonical scalar field driven inflation, the trans-Planckian effects are introduced to the scalar/tensor perturbation equations in an ad hoc manner---without calculating the stress tensor of the cosmological perturbations from the covariant Lagrangian. In this work, we perform the gauge-invariant cosmological perturbations for the single scalar-field inflation with the Jacobson-Corley dispersion relation by computing the fluctuations of all the fields including the unit-timelike vector field which defines a preferred rest frame. We show that: (i) The nonlinear effects introduce corrections only to the perturbed energy density. The corrections to the energy density vanish in the super-Hubble scales. (ii) The scalar perturbations, in general, are not purely adiabatic. (iii) The equation of motion of the Mukhanov-Sasaki variable corresponding to the inflaton field is different from those presumed in the earlier analyses. (iv) The tensor perturbation equation remains unchanged. We perform the classical analysis for the resultant system of equations and also compute the power spectrum of the scalar perturbations in a particular limit. We discuss the implications of our results and compare with the earlier results." @default.
• W2017230924 created "2016-06-24" @default.
• W2017230924 creator A5027218416 @default.
• W2017230924 creator A5060687092 @default.
• W2017230924 date "2005-12-19" @default.
• W2017230924 modified "2023-10-03" @default.
• W2017230924 title "Gauge-invariant perturbation theory for trans-Planckian inflation" @default.
• W2017230924 cites W1555237261 @default.
• W2017230924 cites W1964479029 @default.
• W2017230924 cites W1969293169 @default.
• W2017230924 cites W1975247097 @default.
• W2017230924 cites W1977473468 @default.
• W2017230924 cites W1980910499 @default.
• W2017230924 cites W1983506975 @default.
• W2017230924 cites W1986717967 @default.
• W2017230924 cites W2001092647 @default.
• W2017230924 cites W2007775379 @default.
• W2017230924 cites W2014996284 @default.
• W2017230924 cites W2023724948 @default.
• W2017230924 cites W2026476122 @default.
• W2017230924 cites W2027045279 @default.
• W2017230924 cites W2030863369 @default.
• W2017230924 cites W2030987526 @default.
• W2017230924 cites W2033130956 @default.
• W2017230924 cites W2058194382 @default.
• W2017230924 cites W2066358757 @default.
• W2017230924 cites W2066434542 @default.
• W2017230924 cites W2078130189 @default.
• W2017230924 cites W2078679539 @default.
• W2017230924 cites W2080279804 @default.
• W2017230924 cites W2081969560 @default.
• W2017230924 cites W2083785101 @default.
• W2017230924 cites W2084447043 @default.
• W2017230924 cites W2086160589 @default.
• W2017230924 cites W2093463086 @default.
• W2017230924 cites W2093686531 @default.
• W2017230924 cites W2104007944 @default.
• W2017230924 cites W2106109252 @default.
• W2017230924 cites W2107579142 @default.
• W2017230924 cites W2108319641 @default.
• W2017230924 cites W2110067346 @default.
• W2017230924 cites W2120062331 @default.
• W2017230924 cites W2125400604 @default.
• W2017230924 cites W2132169448 @default.
• W2017230924 cites W2133081615 @default.
• W2017230924 cites W2133760636 @default.
• W2017230924 cites W2145635263 @default.
• W2017230924 cites W2146979279 @default.
• W2017230924 cites W2149699279 @default.
• W2017230924 cites W2163276989 @default.
• W2017230924 cites W2205323072 @default.
• W2017230924 cites W2593700852 @default.
• W2017230924 cites W2594004064 @default.
• W2017230924 cites W2951549225 @default.
• W2017230924 cites W2986218762 @default.
• W2017230924 cites W3100397367 @default.
• W2017230924 cites W3101198552 @default.
• W2017230924 cites W3101983516 @default.
• W2017230924 cites W3102261314 @default.
• W2017230924 cites W3125655173 @default.
• W2017230924 cites W3148037426 @default.
• W2017230924 cites W4302433644 @default.
• W2017230924 doi "https://doi.org/10.1103/physrevd.72.123513" @default.
• W2017230924 hasPublicationYear "2005" @default.
• W2017230924 type Work @default.
• W2017230924 sameAs 2017230924 @default.
• W2017230924 citedByCount "12" @default.
• W2017230924 countsByYear W20172309242012 @default.
• W2017230924 countsByYear W20172309242013 @default.
• W2017230924 countsByYear W20172309242020 @default.
• W2017230924 countsByYear W20172309242023 @default.
• W2017230924 crossrefType "journal-article" @default.
• W2017230924 hasAuthorship W2017230924A5027218416 @default.
• W2017230924 hasAuthorship W2017230924A5060687092 @default.
• W2017230924 hasBestOaLocation W20172309242 @default.
• W2017230924 hasConcept C105795698 @default.
• W2017230924 hasConcept C110521144 @default.
• W2017230924 hasConcept C121332964 @default.
• W2017230924 hasConcept C155281189 @default.
• W2017230924 hasConcept C166126730 @default.
• W2017230924 hasConcept C168110828 @default.
• W2017230924 hasConcept C173153575 @default.
• W2017230924 hasConcept C200941418 @default.
• W2017230924 hasConcept C202444582 @default.
• W2017230924 hasConcept C2524010 @default.
• W2017230924 hasConcept C2780100471 @default.
• W2017230924 hasConcept C33332235 @default.
• W2017230924 hasConcept C33923547 @default.
• W2017230924 hasConcept C37914503 @default.
• W2017230924 hasConcept C57691317 @default.
• W2017230924 hasConcept C62520636 @default.
• W2017230924 hasConcept C74650414 @default.
• W2017230924 hasConceptScore W2017230924C105795698 @default.
• W2017230924 hasConceptScore W2017230924C110521144 @default.
• W2017230924 hasConceptScore W2017230924C121332964 @default.
• W2017230924 hasConceptScore W2017230924C155281189 @default.
• W2017230924 hasConceptScore W2017230924C166126730 @default.
• W2017230924 hasConceptScore W2017230924C168110828 @default.
• W2017230924 hasConceptScore W2017230924C173153575 @default.
• W2017230924 hasConceptScore W2017230924C200941418 @default.

• next