- #1

AHSAN MUJTABA

- 89

- 4

- TL;DR Summary
- I have confusion regarding the dimensions of the cosmic scale factor, ##a(t)##. I have read on the wiki that it is dimensionless, but I wonder about it because it is a function of time, t. I want to use its dimensions to prove the action as non-dimensional.

I know the formula for Hubble's parameter, ##\frac{\dot{a}}{a}##, but I cannot infer any dimension of ##a(t)## from it. Please guide me.

Thanks.

Thanks.