Zobrazeno 1 - 6
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pro vyhledávání: '"Raheleh Shojaee"'
Autor:
Sakineh Karimzadeh, Raheleh Shojaee
Publikováno v:
Advances in High Energy Physics, Vol 2019 (2019)
The recent data from Planck2018 shows that the equation of state parameter of effective cosmic fluid today is w0=-1.03±0.03. This indicates that it is possible for the universe to be in a phantom dominated era today. While a phantom field is essenti
Externí odkaz:
https://doaj.org/article/956a5dbc2bae4297837884207ee39c34
We study $\alpha$-attractor models with both E-model and T-model potential in an extended Non-Minimal Derivative (NMD) inflation where a canonical scalar field and its derivatives are non-minimally coupled to gravity. We calculate the evolution of pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62e71b62d1cdc30c8b60b6c5aa6953c0
http://arxiv.org/abs/2101.03981
http://arxiv.org/abs/2101.03981
Autor:
Raheleh Shojaee, Sakineh Karimzadeh
Publikováno v:
Advances in High Energy Physics
Advances in High Energy Physics, Vol 2019 (2019)
Advances in High Energy Physics, Vol 2019 (2019)
The recent data from Planck2018 shows that the equation of state parameter of effective cosmic fluid today is w0 =-1.03. This indicates that it is possible for the universe to be in a phantom dominated era today. While a phantom field is essentially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c378febd8bb359cf215a064d582c9a18
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
International Journal of Modern Physics D. 30:2150036
We study cosmological inflation in a Galileon inflationary model with the E-model potential to find possible [Formula: see text]-attractors. First, we calculate evolution of the perturbations in our setup. By adopting E-model potential, we show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94f8dbc64c6bef98371cb923e58b6ea5
https://doi.org/10.1142/s021827182150036x
https://doi.org/10.1142/s021827182150036x
Publikováno v:
Advances in High Energy Physics, Vol 2018 (2018)
Advances in High Energy Physics
Advances in High Energy Physics
We study nonlinear cosmological perturbations and their possible non-Gaussian character in an extended non-minimal inflation where gravity is coupled non-minimally to both the scalar field and its derivatives. By expansion of the action up to the thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ad956cb49c2ea953b323190c89fb5f5
https://doaj.org/article/44b4f7ace2d6480eb5b819193169879f
https://doaj.org/article/44b4f7ace2d6480eb5b819193169879f
Publikováno v:
Communications in Theoretical Physics. 60:687-690
There is a significant difference between the calculation based on the theory of general relativity and observation of rotation curves of spiral galaxies. To describe this discrepancy, two distinct theories have been proposed so far: existence of dar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dbecb0b0745fb0b08667e2fb51dc085
https://doi.org/10.1088/0253-6102/60/6/09
https://doi.org/10.1088/0253-6102/60/6/09