Question

What's the path of least action for fermions off-shell?

Answer 1

Heya....

Question :- What's the path of least action for fermions off-shell??

Answer :-

We integrated over virtual path in the fermions path integration... Actually the path doesn't matter because we count the action numbers acted up on the office shell only...

But still without integrating over the path the configuration will it take place so we consider how the path look like only...

Thanks

Answer 2

$\huge\underline\mathfrak\purple{Solution}$

For the path of least action for fermions off shell we need to integrate the virtual path

So integrating the virtual path is necessary in the case of fermions off shell

Thanks! ✨❤