So, what is it?
I agree, what about planck's constant? Seems like an important constant to me.Originally posted by FZ+
What about h? h-bar? i?
Originally posted by bdkeenan00
No, you don't need π to define hbar. You could take hbar as fundamental, and define h = hbar * 2π, and then it would be h which requires π. In fact, hbar is really more fundamental than h; it's what appears in the canonical commutation relations which are the foundation of quantum theory.P.S. h-bar is important but it is h/2pi(I think). So you would have to have that important constant pi to have h-bar.