Feynman checkers: The probability to find an electron vanishes nowhere inside the light cone
Ivan Novikov · Reviews in Mathematical Physics · 2022
We study Feynman checkers, the most elementary model of electron motion introduced by Feynman. For the model, we prove that the probability to find an electron vanishes nowhere inside the light cone. We also prove several results on the average electron velocity. In addition, we present a lot of identities related to the model.