000615583 001__ 615583
000615583 003__ SzGeCERN
000615583 005__ 20240501042905.0
000615583 0248_ $$aoai:cds.cern.ch:615583$$pcerncds:CERN$$pcerncds:hep-ph$$pcerncds:CERN:FULLTEXT$$pcerncds:FULLTEXT
000615583 0247_ $$2DOI$$a10.1088/1475-7516/2003/10/012
000615583 035__ $$9CERN annual report$$a2003-3.0894
000615583 035__ $$9SPIRES$$a5546052
000615583 035__ $$9arXiv$$aoai:arXiv.org:hep-ph/0305074
000615583 035__ $$9Inspire$$a618318
000615583 037__ $$9arXiv$$ahep-ph/0305074$$chep-ph
000615583 037__ $$aCERN-TH-2003-105
000615583 041__ $$aeng
000615583 084__ $$2CERN Library$$aTH-2003-105
000615583 088__ $$aCERN-TH-2003-105
000615583 100__ $$aChung, Daniel J.H.$$uCERN$$uWisconsin U., Madison
000615583 245__ $$aMinimal Theoretical Uncertainties in Inflationary Predictions
000615583 260__ $$c2003
000615583 269__ $$aGeneva$$bCERN$$c7 May 2003
000615583 300__ $$a35 p
000615583 340__ $$apaper
000615583 500__ $$9arXiv$$aLaTeX file, 35 pages; some typos corrected
000615583 520__ $$aDuring inflation, primordial energy density fluctuations are created from approximate de Sitter vacuum quantum fluctuations redshifted out of the horizon after which they are frozen as perturbations in the background curvature. In this paper we demonstrate that there exists an intrinsic theoretical uncertainty in the inflationary predictions for the curvature perturbations due to the failure of the well known prescriptions to specify the vacuum uniquely. Specifically, we show that the two often used prescriptions for defining the initial vacuum state -- the Bunch-Davies prescription and the adiabatic vacuum prescription (even if the adiabaticity order to which the vacuum is specified is infinity) -- fail to specify the vacuum uniquely in generic inflationary spacetimes in which the total duration of inflation is finite. This conclusion holds despite the absence of any trans-Planckian effects or effective field theory cutoff related effects. We quantify the uncertainty which is applicable to slow roll inflationary scenarios as well as for general FRW spacetimes and find that the uncertainty is generically small. This uncertainty should be treated as a minimal uncertainty that underlies all curvature perturbation calculations.
000615583 520__ $$9Inspire$$aDuring inflation, primordial energy density fluctuations are created from approximate de Sitter vacuum quantum fluctuations redshifted out of the horizon after which they are frozen as perturbations in the background curvature. In this paper we demonstrate that there exists an intrinsic theoretical uncertainty in the inflationary predictions for the curvature perturbations due to the failure of the well known prescriptions to specify the vacuum uniquely. Specifically, we show that the two often used prescriptions for defining the initial vacuum state -- the Bunch-Davies prescription and the adiabatic vacuum prescription (even if the adiabaticity order to which the vacuum is specified is infinity) -- fail to specify the vacuum uniquely in generic inflationary spacetimes in which the total duration of inflation is finite. This conclusion holds despite the absence of any trans-Planckian effects or effective field theory cutoff related effects. We quantify the uncertainty which is applicable to slow roll inflationary scenarios as well as for general FRW spacetimes and find that the uncertainty is generically small. This uncertainty should be treated as a minimal uncertainty that underlies all curvature perturbation calculations.
000615583 595__ $$aCERN-TH
000615583 595__ $$aLANL EDS
000615583 595__ $$aOA
000615583 595__ $$aSIS:2004 PR/LKR added
000615583 595__ $$aSIS LANLPUBL2004
000615583 65017 $$2SzGeCERN$$aParticle Physics - Phenomenology
000615583 65027 $$2arXiv$$aParticle Physics - Theory
000615583 65027 $$2arXiv$$bAstrophysics and Astronomy
000615583 690C_ $$aARTICLE
000615583 690C_ $$aCERN
000615583 693__ $$aNot applicable$$eNot applicable
000615583 695__ $$9LANL EDS$$aHigh Energy Physics - Phenomenology
000615583 700__ $$aNotari, Alessio$$uPisa, Scuola Normale Superiore
000615583 700__ $$aRiotto, Antonio$$iINSPIRE-00160028$$uINFN, Padua
000615583 710__ $$5TH
000615583 773__ $$c012$$pJCAP$$v10$$y2003
000615583 852__ $$cCERN ARC Library$$hCERN-TH-2003-105
000615583 859__ [email protected]
000615583 8564_ $$uhttp://weblib.cern.ch/abstract?CERN-TH-2003-105
000615583 8564_ $$uhttp://www.iop.org/EJ/abstract/1475-7516/2003/10/012$$yJCAP Electronic Journal Server
000615583 8564_ $$81241689$$s254152$$uhttps://cds.cern.ch/record/615583/files/arXiv:hep-ph_0305074.pdf
000615583 8564_ $$897169$$s184438$$uhttps://cds.cern.ch/record/615583/files/0305074.ps.gz$$yAccess to fulltext document
000615583 8564_ $$897169$$s311882$$uhttps://cds.cern.ch/record/615583/files/0305074.pdf$$yAccess to fulltext document
000615583 901__ $$uCERN
000615583 901__ $$uINFN, Padova
000615583 901__ $$uSNS, Pisa
000615583 916__ $$sn$$w200319$$ya2003
000615583 960__ $$a13
000615583 961__ $$c20100417$$h1146$$lCER01$$x20030515
000615583 963__ $$aPUBLIC
000615583 964__ $$a0001
000615583 970__ $$a002375030CER
000615583 980__ $$aARTICLE