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Record W2901802186 · doi:10.1139/cjp-2018-0403

Dynamics of Bianchi type-II anisotropic dark energy cosmological model in the presence of scalar-meson fields

2018· article· en· W2901802186 on OpenAlexvenueno aff
D. R. K. Reddy, Y. Aditya, K. Dasu Naidu

Bibliographic record

VenueCanadian Journal of Physics · 2018
Typearticle
Languageen
FieldPhysics and Astronomy
TopicCosmology and Gravitation Theories
Canadian institutionsnot available
Fundersnot available
KeywordsPhysicsQuintessenceDark energyMetric expansion of spaceScalar fieldDe Sitter universeCosmologyTheoretical physicsMathematical physicsLambda-CDM modelDeceleration parameterUniverseClassical mechanicsAstrophysics

Abstract

fetched live from OpenAlex

Today dark energy cosmological models have become essential to explain the accelerated expansion of the universe. Motivated by this we investigate, in this paper, a dark energy model in the presence of massless scalar field in the framework of locally rotationally symmetric (LRS) Bianchi type-II space–time. To find a deterministic model of the universe we use the hybrid expansion law to solve Einstein’s field equations. We also use a relation between metric potential for this purpose. The dynamical cosmological parameters of the model are determined and their physical discussion is presented through graphical representation. It is observed that our model, being a scalar field model, varies in the quintessence region and exhibits a cosmic transition of the universe from early deceleration to late-time acceleration. This fact is in agreement with the observations of modern cosmology.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.040
Threshold uncertainty score0.230

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.238
Teacher spread0.226 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations18
Published2018
Admission routes1
Has abstractyes

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