30 اردیبهشت 1403

شایسته غفاری شویشه

مرتبه علمی: استادیار
نشانی:
تحصیلات: دکترای تخصصی / فیزیک - اخترفیزیک و کیهانشناسی
تلفن:
دانشکده: مرکز تحقیقات نجوم و اختر فیزیک مراغه

مشخصات پژوهش

عنوان
Kaniadakis holographic dark energy in Brans-Dicke cosmology
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
: Holographic dark energy; Kaniadakis entropy; accelerated universe
سال
2022
مجله MODERN PHYSICS LETTERS A
شناسه DOI 10.1142/S0217732322501528
پژوهشگران شایسته غفاری شویشه

چکیده

By using the holographic hypothesis and Kaniadakis generalized entropy, which is based on relativistic statistical theory and modified Boltzmann–Gibbs entropy, we build Kaniadakis holographic dark energy (DE) model in the Brans–Dicke framework. We derive cosmological parameters of the Kaniadakis holographic DE model, with IR cutoff as the Hubble horizon, in order to investigate its cosmological consequences. Our study shows that even in the absence of an interaction between the dark sectors of the cosmos, the Kaniadakis holographic dark energy model with the Hubble radius as IR cutoff can explain the present accelerated phase of the universe expansion in the Brans–Dicke theory. The stability of the model, using the squared of sound speed, has been checked and it is found that the model is unstable in non-interacting case and can be stable for some range of model parameters within the interacting case.