Big Bang

[polymath257]

Hi Polymath,

We've been through this before:

http://www.preposterousuniverse.com/blog...-equation/

QFT did not "replace" QM.

But, as your link shows, the Schrodinger equation needed to go beyond the single particle non-relativistic equation is different than the one in Griffiths. In fact, the appropriate equation is usually derived from the Lagrangian formulation and can be put into the Schrodinger form, but the standard Schrodinger equation is the non-relativistic version of things (although it can be multi-particle---which the one in Griffiths is not).