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gr-qc2021★ 26 cited
The P-V Phase Transition of the FRW Universe
Shi-Bei Kong, Haximjan Abdusattar, Yihao Yin +2
We define thermodynamic pressure by work density as the conjugate quantity of thermodynamic volume from field equation. We derive the equations of state = f…
gr-qc2021★ 19 cited
First Principle Study of Gravitational Pressure and Thermodynamics of FRW Universe
Haximjan Abdusattar, Shi-Bei Kong, Wen-Long You +2
We make a first principle study of gravitational pressure in cosmic thermodynamics. The pressure is directly derived from the unified first law, in fact the Einstein field equation…