Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Wompherdeiki Khyllep"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 8, Pp 1-15 (2024)
Abstract In this paper, we present a cosmological model within the framework of symmetric teleparallel gravity, focusing on f(Q) gravity, where Q represents the non-metricity scalar. Utilizing cosmological datasets, we derive an accelerating cosmolog
Externí odkaz:
https://doaj.org/article/04df0aba9d0c46ed9f90f6806a0dbae0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 1, Pp 1-24 (2024)
Abstract We carry out a compact phase space analysis of a non-canonical scalar field theory whose Lagrangian is of the form $$F(X)-V(\phi )$$ F ( X ) - V ( ϕ ) within general relativity. In particular, we focus on a kinetic term of the form $$F(X)=\
Externí odkaz:
https://doaj.org/article/4508f7604adb4e00ae91ed14c13fbbb2
Autor:
Wompherdeiki Khyllep, Jibitesh Dutta
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-19 (2021)
Abstract Non-minimal coupled scalar field models are well-known for providing interesting cosmological features. These include a late-time dark energy behavior, a phantom dark energy evolution without singularity, an early-time inflationary Universe,
Externí odkaz:
https://doaj.org/article/9e2b9384bc9442fea5333ce609a7ab8b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 7, Pp 1-20 (2021)
Abstract We consider a cosmological scenario endowed with an interaction between the universe’s dark components – dark matter and dark energy. Specifically, we assume the dark matter component to be a pressure-less fluid, while the dark energy co
Externí odkaz:
https://doaj.org/article/77f8d24d58c24b7db71bff14dc03e317
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 4, Pp 1-14 (2019)
Abstract We extend the investigation of cosmological dynamics of the general non-canonical scalar field models by dynamical system techniques for a broad class of potentials and coupling functions. In other words, we do not restrict the analysis to e
Externí odkaz:
https://doaj.org/article/d80bc4231467477c90d370910dc02e1f
Autor:
Wompherdeiki Khyllep, Jibitesh Dutta
Publikováno v:
Physics Letters B, Vol 797, Iss , Pp - (2019)
Rastall gravity theory shows notable features consistent with physical observations in comparison to the standard Einstein theory. Recently, there has been a debate about the equivalence of Rastall gravity and general relativity. Motivated by this op
Externí odkaz:
https://doaj.org/article/3ece0576ee4a49e495640fcde2a19f08
Publikováno v:
Physical Review D. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e68df290a9e0de3c02a86332eda954
https://doi.org/10.1103/physrevd.107.044022
https://doi.org/10.1103/physrevd.107.044022
Publikováno v:
INSPIRE-HEP
Using the cosmological data sets, accelerating cosmological models are obtained in this paper by constraining the free parameters in symmetric teleparallel gravity. Using the best-fit values of free parameters, we determine the present values of geom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c5991e4ebf9674b2c2fb54685be2b70
https://doi.org/10.2139/ssrn.4374178
https://doi.org/10.2139/ssrn.4374178
We apply the formalism of dynamical system analysis to investigate the evolution of interacting dark energy scenarios at the background and perturbation levels in a unified way. Since the resulting dynamical system contains the extra perturbation var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbe1c2e197b12ff0b49c252ebc0e5839
http://arxiv.org/abs/2111.01268
http://arxiv.org/abs/2111.01268
Autor:
Jibitesh Dutta, Wompherdeiki Khyllep
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-19 (2021)
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-19 (2021)
Non-minimally coupled scalar field models are well-known for providing interesting cosmological features. These include a late time dark energy behavior, a phantom dark energy evolution without singularity, an early time inflationary universe, scalin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09d6fa07c1bd9a2a020f85fc48b32854
http://repo.scoap3.org/api
http://repo.scoap3.org/api