Note on " Electromagnetism and Gravitation "

Clifford Valued Differential Forms, and Some Issues in Gravitation, Electromagnetism and " Unified " Theories *

On the Equivalence Principle and a Unified Description of Gravitation and Electromagnetism

We first investigate the form the general relativity theory would have taken had the gravitational mass and the inertial mass of material objects been different. We then extend this analysis to electromagnetism and postulate an equivalence principle for the electromagnetic field. We argue that to each particle with a different electric charge-to-mass ratio in a gravitational and electromagnetic...

A Reconciliation of Electromagnetism and Gravitation

It is argued that once we consider the underpinning of a Non Com-mutative geometry, itself symptomatic of extended particles, for example in Quantum Superstring theory, then a reconciliation between gravitation and electromagnetism is possible.

Unified Description of Gravitation and Electromagnetism through a Symmetric Metric

If gravitation and electromagnetism are both described in terms of a symmetric metric tensor, then the deflection of an electron beam by a charged sphere should be different from its deflection according to the Reissner-Nordstrøm solution of General Relativity. If such a unified description is true, the equivalence principle for the electric field implies that the photon has a nonzero effective...

Mie’s Theories of Matter and Gravitation

Unifying physics by describing a variety of interactions – or even all interactions – within a common framework has long been an alluring goal for physicists. One of the most ambitious attempts at unification was made in the 1910s by Gustav Mie. Mie aimed to derive electromagnetism, gravitation, and aspects of the emerging quantum theory from a single variational principle and a well-chosen Lag...