Fermions on a cylinder coupled to gravity and gauge fields are examined by studying the geometric action associated with the symmetries of such a system. The gauge coupling constant is shown to beâ€¦ (More)

The gravitational analogue of the electromagnetic Meissner effect is investigated. Starting from the post-Newtonian approximation to general relativity we arrive at gravitational London equations,â€¦ (More)

The possibility of a gravitational phase transition, especially with respect to neutron stars is investigated. First, a semiclassical treatment is given, predicting a gravitational London penetrationâ€¦ (More)

The absorption properties of hydrogen iodide (HI) near 1.55 mu m are described. Absorption lines of this gas located at wavelengths ranging from 1.534 to 1.594 mu m have been identified. They areâ€¦ (More)

We are able to show that BF theories naturally emerge from the coadjoint orbits of W2 and wâˆž algebras which includes a Kac-Moody sector. Since QCD strings can be identified with a BF theory, we areâ€¦ (More)

In this work we use constructs from the dual space of the semi-direct product of the Virasoro algebra and the affine Lie algebra of a circle to write a theory of gravitation which survives in anyâ€¦ (More)

In this work we use constructs from the dual space of the semi-direct product of the Virasoro algebra and the affine Lie algebra of a circle to write a theory of gravitation which is a naturalâ€¦ (More)