30 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
Thermodynamical description of the ghost dark energy model
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
hermodynamics; ghost; dark energy.
سال
2015
مجله INTERNATIONAL JOURNAL OF MODERN PHYSICS D
شناسه DOI 10.1142/S0218271815500480
پژوهشگران مرضیه هنروریان ، احمد شیخی ، هومان مرادپور

چکیده

In this paper, we point out thermodynamical description of ghost dark energy (GDE) and its generalization to the early universe. Thereinafter, we find expressions for the entropy changes of these dark energy (DE) candidates. In addition, considering thermal fluctuations, thermodynamics of the DE component interacting with a dark matter (DM) sector is addressed. We will also find the effects of considering the coincidence problem on the mutual interaction between the dark sectors, and thus the equation of state parameter of DE. Finally, we derive a relation between the mutual interaction of the dark components of the universe, accelerated with the either GDE or its generalization, and the thermodynamic fluctuations.