Fig. 2
From: Asymmetry and non-dispersivity in the Aharonov-Bohm effect
Far field electron diffraction. An electron diffraction pattern for a 1-D aperture that holds a magnetic flux line is given in the far-field. The result of a path integral simulation (thick gray lines) is in agreement with Berry’s analytic result (black, blue and purple line) and is shown for three magnetic flux line of strengths, α. A non-zero expectation value of position for the case that α = 1/4 indicates the presence of a force for the AB physical system. The path integral simulation is developed for the purpose of including a 2-D circular aperture, a partially coherent electron beam, and a finite-sized magnetic flux bar (instead of a flux line) to facilitate a detailed comparison with experiment
