Linked Questions
16 questions linked to/from Differential equation (Greens function) satisfied by the kernel using path integrals
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Why must the propagator exponent be imaginary?
In response to asmaier's question, qmechanic showed why the propagator must be $\exp(cS)$. That made perfect sense. But can it also be shown that $c$ is imaginary? I believe it follows from ...
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