Matches in SemOpenAlex for { <https://semopenalex.org/work/W3006402011> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W3006402011 abstract "We investigate the transformation of initial conditions for primordial curvature perturbations under two types of transformations of the associated action: field-redefinitions and the addition of surface terms. We consider a subset of these transformations that preserve the form of the equation of motion and the commutator structure of the theory, making them canonical transformations. Actions related to each other via such transformations are physically equivalent (both classically and in the quantum sense), and choosing between the equivalent actions can be thought of as a gauge choice. Under these transformations we find that initial conditions derived via minimising the vacuum expectation value of the Hamiltonian and those obtained using the Danielsson vacuum prescription are not invariant, whereas those obtained by minimising the local energy density are invariant. We derive the range of physically distinct initial conditions obtainable by Hamiltonian diagonalisation, and illustrate their effect on the scalar primordial power spectrum and the Cosmic Microwave Background under the `just enough inflation' model. We also generalise the analogy between the dynamics of a quantum scalar field on a curved, time-dependent spacetime and the gauge-invariant curvature perturbation." @default.
- W3006402011 created "2020-02-24" @default.
- W3006402011 creator A5006436201 @default.
- W3006402011 creator A5019298269 @default.
- W3006402011 creator A5037021885 @default.
- W3006402011 creator A5077008803 @default.
- W3006402011 creator A5082611196 @default.
- W3006402011 date "2020-02-14" @default.
- W3006402011 modified "2023-09-27" @default.
- W3006402011 title "Investigating the gauge invariance of quantum initial conditions for inflation" @default.
- W3006402011 hasPublicationYear "2020" @default.
- W3006402011 type Work @default.
- W3006402011 sameAs 3006402011 @default.
- W3006402011 citedByCount "0" @default.
- W3006402011 crossrefType "posted-content" @default.
- W3006402011 hasAuthorship W3006402011A5006436201 @default.
- W3006402011 hasAuthorship W3006402011A5019298269 @default.
- W3006402011 hasAuthorship W3006402011A5037021885 @default.
- W3006402011 hasAuthorship W3006402011A5077008803 @default.
- W3006402011 hasAuthorship W3006402011A5082611196 @default.
- W3006402011 hasConcept C110521144 @default.
- W3006402011 hasConcept C115047598 @default.
- W3006402011 hasConcept C121332964 @default.
- W3006402011 hasConcept C126255220 @default.
- W3006402011 hasConcept C130187892 @default.
- W3006402011 hasConcept C130787639 @default.
- W3006402011 hasConcept C141886431 @default.
- W3006402011 hasConcept C158129726 @default.
- W3006402011 hasConcept C181830111 @default.
- W3006402011 hasConcept C190470478 @default.
- W3006402011 hasConcept C195065555 @default.
- W3006402011 hasConcept C2524010 @default.
- W3006402011 hasConcept C33923547 @default.
- W3006402011 hasConcept C37914503 @default.
- W3006402011 hasConcept C39366733 @default.
- W3006402011 hasConcept C62520636 @default.
- W3006402011 hasConcept C63804487 @default.
- W3006402011 hasConcept C74650414 @default.
- W3006402011 hasConcept C84114770 @default.
- W3006402011 hasConceptScore W3006402011C110521144 @default.
- W3006402011 hasConceptScore W3006402011C115047598 @default.
- W3006402011 hasConceptScore W3006402011C121332964 @default.
- W3006402011 hasConceptScore W3006402011C126255220 @default.
- W3006402011 hasConceptScore W3006402011C130187892 @default.
- W3006402011 hasConceptScore W3006402011C130787639 @default.
- W3006402011 hasConceptScore W3006402011C141886431 @default.
- W3006402011 hasConceptScore W3006402011C158129726 @default.
- W3006402011 hasConceptScore W3006402011C181830111 @default.
- W3006402011 hasConceptScore W3006402011C190470478 @default.
- W3006402011 hasConceptScore W3006402011C195065555 @default.
- W3006402011 hasConceptScore W3006402011C2524010 @default.
- W3006402011 hasConceptScore W3006402011C33923547 @default.
- W3006402011 hasConceptScore W3006402011C37914503 @default.
- W3006402011 hasConceptScore W3006402011C39366733 @default.
- W3006402011 hasConceptScore W3006402011C62520636 @default.
- W3006402011 hasConceptScore W3006402011C63804487 @default.
- W3006402011 hasConceptScore W3006402011C74650414 @default.
- W3006402011 hasConceptScore W3006402011C84114770 @default.
- W3006402011 hasLocation W30064020111 @default.
- W3006402011 hasOpenAccess W3006402011 @default.
- W3006402011 hasPrimaryLocation W30064020111 @default.
- W3006402011 hasRelatedWork W1839971752 @default.
- W3006402011 hasRelatedWork W1863413555 @default.
- W3006402011 hasRelatedWork W2009413317 @default.
- W3006402011 hasRelatedWork W2013511356 @default.
- W3006402011 hasRelatedWork W2060555983 @default.
- W3006402011 hasRelatedWork W2072014384 @default.
- W3006402011 hasRelatedWork W2103389044 @default.
- W3006402011 hasRelatedWork W2133892133 @default.
- W3006402011 hasRelatedWork W2145061337 @default.
- W3006402011 hasRelatedWork W2169689182 @default.
- W3006402011 hasRelatedWork W2768052613 @default.
- W3006402011 hasRelatedWork W2772473721 @default.
- W3006402011 hasRelatedWork W2896416149 @default.
- W3006402011 hasRelatedWork W2963844440 @default.
- W3006402011 hasRelatedWork W3100514325 @default.
- W3006402011 hasRelatedWork W3102690982 @default.
- W3006402011 hasRelatedWork W3102977591 @default.
- W3006402011 hasRelatedWork W3109173482 @default.
- W3006402011 hasRelatedWork W3170658108 @default.
- W3006402011 hasRelatedWork W3197546625 @default.
- W3006402011 isParatext "false" @default.
- W3006402011 isRetracted "false" @default.
- W3006402011 magId "3006402011" @default.
- W3006402011 workType "article" @default.