Authors: Robert Watson
Kaluza's 1921 theory of gravity and electromagnetism using a fifth wrapped-up spatial dimension is inspiration for many modern attempts to develop new physical theories. Here an alternative approach is presented that more fully unifies gravity and electromagnetism. Emphasis is placed on admitting important electromagnetic fields not present in Kaluza's original theory without constraints, and on deriving a Lorentz force law. This is done by identifying 5D momentum with a kinetic charge. By doing so the usual assumption of Ricci flatness corresponding to sourceless electromagnetic fields is replaced by the weaker constraint of vanishing 5D momentum outside of charge models. A weak field limit is also used. An electromagnetic limit is imposed by assuming a constant scalar field. A further extended postulate set involving a super-energy divergence law and a conformal factor is also suggested that allows for a varying scalar field, within what then becomes a type of geometrical conformal gauge theory.
Comments: 19 Pages.
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