a (m)

k

R_h (m)

ct (m)

T (K)

kT (MeV)

2.8 × 10¹⁵

5.8 × 10²¹

3.7 × 10⁴

1.3 × 10⁴

4.2 × 10¹¹

36.5

Energy Density (j∙m⁻³)

Num Density (m⁻³)

Vacuum

Particle thermal

Particle mass

Photons

Particles

Photons

2.1 × 10³⁴

4.5 × 10²²

1.2 × 10²⁴

2.4 × 10³¹

7.7 × 10³³

1.5 × 10⁴²