- #1

exponent137

- 550

- 28

In

https://quantummechanics.ucsd.edu/ph130a/130_notes/node45.html

after

"

it is evident that the solution is obtained with help of ##a^2-b^2=(a+b)(a-b)##

I cannot follow in this derivation, how rows ##\phi^{(L)}=...## and ##\phi^{(R)}=...## are used. Maybe more steps instead of these two rows will help.

Although I think that Feynman once described this more clearly in his book about QED.

Can someone, please, gives a link or more clearly explains this type of derivation of Dirac equation?

https://quantummechanics.ucsd.edu/ph130a/130_notes/node45.html

after

"

*Instead of an equation which is second order in the time derivative, we can make a first order equation, like the Schrödinger equation, by extending this equation to four components.*"it is evident that the solution is obtained with help of ##a^2-b^2=(a+b)(a-b)##

I cannot follow in this derivation, how rows ##\phi^{(L)}=...## and ##\phi^{(R)}=...## are used. Maybe more steps instead of these two rows will help.

Although I think that Feynman once described this more clearly in his book about QED.

Can someone, please, gives a link or more clearly explains this type of derivation of Dirac equation?

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