caa a22 4500 469099577 CHVBK 20180323133041.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF00420232 doi (NATIONALLICENCE)springer-10.1007/BF00420232 Fermion number creation via electromagnetism [Elektronische Daten] [Gebhard Grübl, Christian Reitberger] Let an external current, whose support is confined to the space-like slab |x 0| < T in two-dimensional spacetime, build up a localized charge density which vanishes for times |x 0| > T. We show that the zero mass Dirac quantum field reacts to this current by a c-number shift of the fermion number, i.e. Q out=Q in+ΔQ, with $$\Delta Q{\text{ = }}\smallint _{{\text{ - }}\infty }^\infty {\text{d}}x^0 \smallint _{{\text{ - }}\infty }^{x^0 } {\text{d}}\xi q(\xi )/\pi $$ , where q(x 0) denotes the total external charge. For the shift of the axial charge we obtain an extension of existing results. Kluwer Academic Publishers, 1992 Grübl Gebhard Institut für Theoretische Physik der Universität Innsbruck, A-6020, Innsbruck, Austria aut Reitberger Christian Institut für Theoretische Physik der Universität Innsbruck, A-6020, Innsbruck, Austria aut Letters in Mathematical Physics Kluwer Academic Publishers 26/4(1992-12-01), 235-243 0377-9017 26:4<235 1992 26 11005 https://doi.org/10.1007/BF00420232 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00420232 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grübl Gebhard Institut für Theoretische Physik der Universität Innsbruck, A-6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Reitberger Christian Institut für Theoretische Physik der Universität Innsbruck, A-6020, Innsbruck, Austria aut NATIONALLICENCE 773 0- Letters in Mathematical Physics Kluwer Academic Publishers 26/4(1992-12-01), 235-243 0377-9017 26:4<235 1992 26 11005 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer