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Comments on the Aharonov-Bohm Effect

Author

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  • Kazuyasu Shigemoto
  • Kunihiko Uehara

Abstract

In the original setting of the Aharonov-Bohm, the gauge invariant physical longitudinal mode of the vector potential, which is expressed by the gauge invariant physical current, gives the desired contribution to the Aharonov-Bohm effect. While the scalar mode of the vector potential, which changes under the gauge transformation so that it is the unphysical mode, give no contribution to the Aharonov-Bohm effect. Then Aharonov-Bohm effect really occurs by the physical longitudinal mode in the original Aharonov-Bohm’s setting. In the setting of Tonomura et al., where the magnet is shielded with the superconducting material, not only the magnetic field but also the longitudinal mode of the vector potential become massive by the Meissner effect. Then not only the magnetic field but also the physical longitudinal mode does not come out to the region where the electron travels. In such setting, only the scalar mode of the vector potential exists in the region where the electron travels, but there is no contribution to the Aharonov-Bohm effect from that mode.

Suggested Citation

  • Kazuyasu Shigemoto & Kunihiko Uehara, 2022. "Comments on the Aharonov-Bohm Effect," European Journal of Applied Physics, European Open Science, vol. 4(5), pages 41-45, September.
    • Handle: RePEc:epw:physic:v:4:y:2022:i:5:id:11209
    DOI: 10.24018/ejphysics.2022.4.5.209
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