Seonglae Cho에너지 밀도와 공간 부피와의 관계
Equation of state (cosmology)
In cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number
w
{\displaystyle w}
, equal to the ratio of its pressure
p
{\displaystyle p}
to its energy density
ρ
{\displaystyle \rho }
:
https://en.m.wikipedia.org/wiki/Equation_of_state_(cosmology)