caa a22 4500 469040866 CHVBK 20180323132810.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF02853032 doi (NATIONALLICENCE)springer-10.1007/BF02853032 Warke C. Tata Institute of Fundamental Research, Homi Bhabha Road, 400 005, Bombay, India aut Schwinger's effective lagrangian from reflection and transmission amplitudes [Elektronische Daten] [C Warke] The reflection and transmission amplitudes are defined from the asymptotic form of the solution of Dirac equation of a charged fermion in the presence of uniform time independent external electromagnetic field (E, H). Schwinger's effective lagrangian is derived from the reflection and transmission amplitudes. It is found that both the real and imaginary parts of the effective lagrangian agree with Schwinger's expressions derived from the elegant method of proper time formalism. Indian Academy of Sciences, 1992 Reflection and transmission coefficients nationallicence strong electromagnetic fields nationallicence Schwinger's effective lagrangian nationallicence 11·10 nationallicence 11·15 nationallicence Pramana Springer India 39/1(1992-07-01), 27-35 0304-4289 39:1<27 1992 39 12043 https://doi.org/10.1007/BF02853032 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02853032 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Warke C. Tata Institute of Fundamental Research, Homi Bhabha Road, 400 005, Bombay, India aut NATIONALLICENCE 773 0- Pramana Springer India 39/1(1992-07-01), 27-35 0304-4289 39:1<27 1992 39 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer