Abstract
We consider QED processes in the presence of an infinitely thin and infinitely long straight string with a magnetic flux inside it. The bremsstrahlung from an electron passing by the magnetic string and the electron-positron pair production by a single photon are reviewed. Based on the exact electron and positron solutions of the Dirac equation in the external Aharonov-Bohm potential we present matrix elements for these processes. The dependence of the resulting cross sections on energies, directions, and polarizations of the involved particles is discussed for low energies.
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Audretsch, J., Skarzhinsky, V.D. Quantum Processes beyond the Aharonov-Bohm Effect. Foundations of Physics 28, 777–788 (1998). https://doi.org/10.1023/A:1018801920883
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DOI: https://doi.org/10.1023/A:1018801920883