29 اردیبهشت 1403

هومان مرادپور

مرتبه علمی: دانشیار
نشانی:
تحصیلات: دکترای تخصصی / فیزیک - گرانش، اخترفیزیک و کیهان شناسی
تلفن: -
دانشکده: مرکز تحقیقات نجوم و اختر فیزیک مراغه

مشخصات پژوهش

عنوان
Effects of anisotropy on the sign-changeable interacting Tsallis holographic dark energy
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Dark energy; generalized entropy; anisotropy.
سال
2019
مجله MODERN PHYSICS LETTERS A
شناسه DOI 10.1142/S0217732320500534
پژوهشگران مجید عبدالهی زاده ، احمد شیخی ، کازوهارا بامبا ، هومان مرادپور

چکیده

We consider a spatially homogeneous and anisotropic Bianchi type-I universe which is filled by pressureless dark matter (DM) and Tsallis holographic dark energy (THDE). We assume the two dark components of the universe are interacting with each other throughout a sign-changeable mutual interaction term. Various infra-red (IR) cutoffs are studied, and it is obtained that all models display classical instability by themselves at the future (z →−1). Moreover, we find out that some models can cross the phantom line. In order to have a more comprehensive study, the statefinder diagnostic and the ωD − ω D plane are also investigated showing that the model parameters significantly affect the evolution trajectories in the r − s and ωD − ω D planes.