منابع مشابه
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The universe has an exterior known as the material world and an interior called the “hereafter.” So are the Qur’an and mankind. In other words, the universe, mankind and the Qur’an have hierarchical stages. The universe and mankind comprise the physical world, but the Qur’an constitutes the Divine Law. Since the origin of all three is one single source, one can say the former matches t...
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متن کاملThermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
It is shown that the differential form of Friedmann equation of a FRW universe can be rewritten as a universal form dE = T dS + W dV at apparent horizon, where E is the Misner-Sharp energy, V is the volume inside the apparent horizon, W = (ρ − P)/2 is the work density and ρ and P are energy density and pressure of the matter in the universe, respectively. From the thermodynamic identity one can...
متن کاملThermodynamic Behavior of Friedmann Equations at Apparent Horizon of FRW Universe
It is shown that the differential form of Friedmann equations of a FRW universe can be rewritten as a thermodynamical identity T dS = dE + P dV at apparent horizon, where E is the Misner-Sharp energy, V is the volume inside the apparent horizon, and P is the pressure of the perfect fluid in the universe. From the thermodynamic identity one can derive that the apparent horizoñ r A has associated...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2015
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/32/20/205006