Mechanics of cosmic rings

Abstract

In a flat background, simple non-conducting string loops have no strictly stationary equilibrium states, but for cosmic string loops of superconducting kind such ``vorton'' states will exist, with rotating circular configurations appropriately describable as ``cosmic rings'' (which may conceivably be a significant contributor to the material content of the universe) whose equilibrium is obtained for zero angular velocity of retrograde characteristics. Such a ``cosmic ring'' is characterised by its mass M and angular momentum J say, corresponding at a microscopic level to two independent quantum numbers, namely charge number C and a topological phase number N whose product determines the angular momentum, J=CN, while their ratio determines the local intrinsic state of the string, which may be qualitatively classified as being of ``electric'' or ``magnetic'' type depending on whether C/N is greater or less than a critical value dependent on the underlying theoretical model.

9 page TeX file (with typo corrections and completed references) of article on generic properties of circular vorton states published in Physics Letters

Cited by in corpus (20)

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• Cosmic Strings from Supersymmetric Flat Directions
• Stable Cosmic Vortons
• Cold, warm, and composite (cool) cosmic string models
• Generalised velocity-dependent one-scale model for current-carrying strings
• Nonabelian Bosonic Currents in Cosmic Strings
• Current-carrying cosmic string loops 3D simulation: towards a reduction of the vorton excess problem
• A Boltzmann treatment for the vorton excess problem
• Irreducible cosmic production of relic vortons
• Acceleration of electric current-carrying string loop near a Schwarzschild black hole immersed in an asymptotically uniform magnetic field
• Coupled currents in cosmic strings
• Dilatonic current-carrying cosmic strings
• Gravitating vortons as ring solitons in general relativity
• Dynamics of cosmic strings with higher-dimensional windings
• Can Superconducting Cosmic Strings Piercing Seed Black Holes Generate Supermassive Black Holes in the Early Universe?
• Contributions from Dilatonic Strings to the Flat Behaviour of the Rotational Curves in Galaxies
• Stability of superconducting strings coupled to cosmic strings
• Gravitational field and lensing of a circular chiral vorton
• Vortons with Abelian and non-Abelian currents and their stability
• Modelling Cosmic Springs with Finsler and Generalised Finsler Geometries