Difficulties with the Klein-Gordon Equation

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Scientific Paper
Title Difficulties with the Klein-Gordon Equation
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Author(s) E Comay
Keywords Relativistic Quantum Mechanics, Klein-Gordon Equation
Published 2004
Journal Apeiron
Volume 11
Number 3
No. of pages 18

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Abstract

Relying on the variational principle, it is proved that new contradictions emerge from an analysis of the Lagrangian density of the Klein-Gordon field: normalization problems arise and interaction with external electromagnetic fields cannot take place. By contrast, the Dirac equation is free of these problems. Other inconsistencies arise if the Klein-Gordon field is regarded as a classical field.