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arXiv · 1407.4401

Corroborating the equivalence between the Duffin-Kemmer-Petiau and the Klein-Gordon and Proca equations

L. B. Castro·A. S. de Castro
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Abstract

It is shown that the Hamiltonian version of the Duffin-Kemmer-Petiau theory with electromagnetic coupling brings about a source term at the current. It is also shown that such a source term disappears from the scenario if one uses the correct physical form for the Duffin-Kemmer-Petiau field, regardless the choice for representing the Duffin-Kemmer-Petiau matrices. This result is used to fix the ambiguity in the electromagnetic coupling in the Duffin-Kemmer-Petiau theory. Moreover, some widespread misconceptions about the Hermiticity in the Duffin-Kemmer-Petiau theory are discussed.

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L. B. Castro, A. S. de Castro. 2014-07-22. Corroborating the equivalence between the Duffin-Kemmer-Petiau and the Klein-Gordon and Proca equations. https://doi.org/10.1103/physreva.90.022101

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