O ct 1 99 6 The Dirac - Maxwell Equations with Cylindrical Symmetry H . S . Booth and

ar X iv : h ep - t h / 95 10 06 5 v 1 1 1 O ct 1 99 5 LOCALISED SOLUTIONS OF THE DIRAC - MAXWELL EQUATIONS

The full classical Dirac-Maxwell equations are considered in a somewhat novel form and under various simplifying assumptions. A reduction of the equations is performed in the case when the Dirac field is static. A further reduction of the equations is made under the assumption of spherical symmetry. These static spherically symmetric equations are examined in some detail and a numerical solutio...

O ct 1 99 9 The Einstein - Dirac - Maxwell Equations – Black Hole Solutions

ar X iv : h ep - t h / 96 10 03 1 v 1 7 O ct 1 99 6 INJE – TP – 96 – 5 Higher dimensional extremal black strings

We investigate the five and six-dimensional black strings within EinsteinMaxwell theory. The extremal black strings are endowed with the null Killing symmetry. We study the propagation of Einstein-Maxwell modes in the extremal black string background by using this symmetry. It turns out that one graviton is a propagating mode, while both the Maxwell(F) and three-form (H) fields are non-propagat...

ar X iv : h ep - t h / 98 07 13 3 v 1 1 8 Ju l 1 99 8 HUB EP - 98 / 43 DFPD 98 / TH / 36 hep - th / 9807133

A way of covariantizing duality symmetric actions is described. The presence of self–dual fields or, in more general case, duality–symmetric fields in field–theoretical and string models reflects their duality properties whose extreme importance for understanding a full quantum theory has been appreciated during an impetuous development of the duality field happened during last few years. The k...

ar X iv : h ep - t h / 93 11 10 6 v 1 1 8 N ov 1 99 3 Axial Monopoles , Quantization of Electric Charge and Dynamical Discreteness of Space - Time

In the present contribution we show that the introduction of a conserved axial current in electrodynamics can explain the quantiza-tion of electric charge, preserving parity conservation, and introduces a dynamical discreteness into space-time. 1-Introduction In 1931 Dirac proposes an electromagnetic theory with magnetic monopoles [1] , whose appeal is mainly connected to the possibility of exp...