Abstract
We present the classical theory of a set of two spinor fields patterned closely after the Dirac theory in two-component form, but each field obeys a modified Klein-Gordon equation, in which the sign ofm 2 has been changed. The solution contains parts with real and imaginary frequencies, that contribute differently to conserved quantities such as the charge and the energy-momentum vector. We also show how the minimal interaction with the electromagnetic field is obtained.
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Marx, E. The classical spin-1/2 tachyon field. Int J Theor Phys 3, 299–305 (1970). https://doi.org/10.1007/BF00669758
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DOI: https://doi.org/10.1007/BF00669758