Holographic application in cosmology: Thermodynamics of the Van der Waals cosmic fluid
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 196
فایل این مقاله در 13 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JAHP-1-1_006
تاریخ نمایه سازی: 21 مهر 1400
چکیده مقاله:
This paper is devoted to investigate the thermodynamic stabilityof a generic cosmological fluid known as Van der Waals fluid inthe context of flat FRW universe. It is treated as a perfect fluidthat obeys the equation of stateP=frac{gammarho}{۱-betarho}-alpharho^{۲}, ۰leqgamma<۱,where rho stands for energy density and P stands for pressureof the fluid. In this regard, we discuss the behavior of physicalparameters to analyze the evolution of the universe. Weinvestigate whether the cosmological scenario fulfills the thirdlaw of thermodynamics using specific heat formalism. Next wediscuss the thermal equation of state and by means of adiabatic,specific heat and isothermal conditions from classicalthermodynamics we examine the thermal stability.
کلیدواژه ها:
نویسندگان
Mahasweta Biswas
Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-۷۱۱ ۱۰۳, India.
Sayani Maity
Department of Mathematics, Techno India Salt Lake, Sector-V, Kolkata-۷۰۰ ۰۹۱, India.
Ujjal Debnath
Department of Mathematics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-۷۱۱۱۰۳, India