FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990116412> ?p ?o ?g. }

• W1990116412 abstract "In this paper, we raised the question of whether initial cosmological singularity can be proven by cosmological tests. The classical general relativity theory predicts the existence of singularity in the past if only some energy conditions are satisfied. On the other hand, the latest quantum gravity applications to cosmology suggest the possibility of avoiding the singularity and replacing it with a bounce. Bounce is the moment in the evolution of the Universe when the Universe's size is minimum. Therefore the existence of observationally detected bounce in the Universe's past could indicate the validity of the loop quantum gravity hypothesis and nonexistence of initial singularity which is present in the classical $ensuremath{Lambda}mathrm{CDM}$. We investigated the bouncing model described by the generalized Friedmann-Robertson-Walker equation in the context of the observations of the currently accelerating universe. The distant type Ia supernovae data are used to constrain the bouncing evolutional scenario where the square of the Hubble function ${H}^{2}$ is given by the formula ${H}^{2}={H}_{0}^{2}[{ensuremath{Omega}}_{m,0}(1+z{)}^{m}ensuremath{-}{ensuremath{Omega}}_{n,0}(1+z{)}^{n}]$, where ${ensuremath{Omega}}_{m,0},{ensuremath{Omega}}_{n,0}>0$ are density parameters and $n>m>0$. In this paper are shown that, on the basis of the SNIa data, standard bouncing models can be ruled out at the $4ensuremath{sigma}$ confidence level. After adding the cosmological constant to the standard bouncing model (the extended bouncing model), we obtained as the best fit that the parameter ${ensuremath{Omega}}_{n,0}$ is equal to zero which means that the SNIa data do not support the bouncing term in the model. The bouncing term is statistically insignificant on the present epoch. We also demonstrated that BBN offers the possibility of obtaining stringent constraints of the extra term ${ensuremath{Omega}}_{n,0}$. The other observational test methods like CMB and the age of oldest objects in the Universe are also used. We use as well the Akaike informative criterion to select a model which best fits data and we concluded that the bouncing term should be ruled out by Occam's razor, which makes the big-bang scenario more favorable than the bouncing scenario." @default.
• W1990116412 created "2016-06-24" @default.
• W1990116412 creator A5012355731 @default.
• W1990116412 creator A5038430998 @default.
• W1990116412 creator A5044552507 @default.
• W1990116412 creator A5081386925 @default.
• W1990116412 date "2005-09-06" @default.
• W1990116412 modified "2023-10-16" @default.
• W1990116412 title "Can the initial singularity be detected by cosmological tests?" @default.
• W1990116412 cites W1499284551 @default.
• W1990116412 cites W1853767801 @default.
• W1990116412 cites W1964612370 @default.
• W1990116412 cites W1968199207 @default.
• W1990116412 cites W1970820225 @default.
• W1990116412 cites W1970977408 @default.
• W1990116412 cites W1979617775 @default.
• W1990116412 cites W1989275576 @default.
• W1990116412 cites W1990088241 @default.
• W1990116412 cites W1998580542 @default.
• W1990116412 cites W2008432753 @default.
• W1990116412 cites W2018742046 @default.
• W1990116412 cites W2037392005 @default.
• W1990116412 cites W2045136935 @default.
• W1990116412 cites W2045377202 @default.
• W1990116412 cites W2057221700 @default.
• W1990116412 cites W2059219101 @default.
• W1990116412 cites W2061134346 @default.
• W1990116412 cites W2069985288 @default.
• W1990116412 cites W2070707213 @default.
• W1990116412 cites W2072356447 @default.
• W1990116412 cites W2073603601 @default.
• W1990116412 cites W2073832139 @default.
• W1990116412 cites W2075884494 @default.
• W1990116412 cites W2079828735 @default.
• W1990116412 cites W2081896617 @default.
• W1990116412 cites W2083500959 @default.
• W1990116412 cites W2102025998 @default.
• W1990116412 cites W2112173033 @default.
• W1990116412 cites W2118265220 @default.
• W1990116412 cites W2137919480 @default.
• W1990116412 cites W2139440433 @default.
• W1990116412 cites W2142635246 @default.
• W1990116412 cites W2143289828 @default.
• W1990116412 cites W2161255311 @default.
• W1990116412 cites W2239117083 @default.
• W1990116412 cites W2268836188 @default.
• W1990116412 cites W3098149017 @default.
• W1990116412 cites W3098520835 @default.
• W1990116412 cites W3100571392 @default.
• W1990116412 cites W3104248883 @default.
• W1990116412 cites W3105824539 @default.
• W1990116412 cites W3105897092 @default.
• W1990116412 cites W3123165943 @default.
• W1990116412 cites W3149545211 @default.
• W1990116412 cites W4236481097 @default.
• W1990116412 cites W4249391714 @default.
• W1990116412 doi "https://doi.org/10.1103/physrevd.72.063504" @default.
• W1990116412 hasPublicationYear "2005" @default.
• W1990116412 type Work @default.
• W1990116412 sameAs 1990116412 @default.
• W1990116412 citedByCount "21" @default.
• W1990116412 countsByYear W19901164122016 @default.
• W1990116412 countsByYear W19901164122022 @default.
• W1990116412 countsByYear W19901164122023 @default.
• W1990116412 crossrefType "journal-article" @default.
• W1990116412 hasAuthorship W1990116412A5012355731 @default.
• W1990116412 hasAuthorship W1990116412A5038430998 @default.
• W1990116412 hasAuthorship W1990116412A5044552507 @default.
• W1990116412 hasAuthorship W1990116412A5081386925 @default.
• W1990116412 hasConcept C103874350 @default.
• W1990116412 hasConcept C11346066 @default.
• W1990116412 hasConcept C121332964 @default.
• W1990116412 hasConcept C147452769 @default.
• W1990116412 hasConcept C151730666 @default.
• W1990116412 hasConcept C16171025 @default.
• W1990116412 hasConcept C166861157 @default.
• W1990116412 hasConcept C172790937 @default.
• W1990116412 hasConcept C19262093 @default.
• W1990116412 hasConcept C200941418 @default.
• W1990116412 hasConcept C20154449 @default.
• W1990116412 hasConcept C2524010 @default.
• W1990116412 hasConcept C26405456 @default.
• W1990116412 hasConcept C2778086583 @default.
• W1990116412 hasConcept C2779343474 @default.
• W1990116412 hasConcept C2779557605 @default.
• W1990116412 hasConcept C33332235 @default.
• W1990116412 hasConcept C33923547 @default.
• W1990116412 hasConcept C37914503 @default.
• W1990116412 hasConcept C62520636 @default.
• W1990116412 hasConcept C84999194 @default.
• W1990116412 hasConcept C86803240 @default.
• W1990116412 hasConcept C93315710 @default.
• W1990116412 hasConceptScore W1990116412C103874350 @default.
• W1990116412 hasConceptScore W1990116412C11346066 @default.
• W1990116412 hasConceptScore W1990116412C121332964 @default.
• W1990116412 hasConceptScore W1990116412C147452769 @default.
• W1990116412 hasConceptScore W1990116412C151730666 @default.
• W1990116412 hasConceptScore W1990116412C16171025 @default.
• W1990116412 hasConceptScore W1990116412C166861157 @default.
• W1990116412 hasConceptScore W1990116412C172790937 @default.

• next