Drum vortons in high density QCD

Abstract

Recently it was shown that high density QCD supports of number of topological defects. In particular, there are U(1)_Y strings that arise due to K^0 condensation that occurs when the strange quark mass is relatively large. The unique feature of these strings is that they possess a nonzero K^+ condensate that is trapped on the core. In the following we will show that these strings (with nontrivial core structure) can form closed loops with conserved charge and currents trapped on the string worldsheet. The presence of conserved charges allows these topological defects, called vortons, to carry angular momentum, which makes them classically stable objects. We also give arguments demonstrating that vortons carry angular momentum very efficiently (in terms of energy per unit angular momentum) such that they might be the important degrees of freedom in the cores of neutron stars.

11 pages, accepted for publication in Physical Review D

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Cited by in corpus (17)

• Quantum Anomalies in Dense Matter
• Vortices and Other Topological Solitons in Dense Quark Matter
• Non-Abelian Strings in High Density QCD: Zero Modes and Interactions
• Neutron Stars as Type-I Superconductors
• Vorton Existence and Stability
• Vortices and type-I superconductivity in neutron stars
• Stable Cosmic Vortons
• Vortex Rings in two Component Bose-Einstein Condensates
• Anomaly inflow on QCD axial domain-walls and vortices
• Aharonov-Bohm defects
• Gravitating vortons as ring solitons in general relativity
• Vortons in dense quark matter
• The Creation of Defects with Core Condensation
• Stable vortex loops in two-species BECs
• Electron shielding of vortons in high-density quark matter
• Chiral non-Abelian domain walls in the Ginzburg-Landau theory
• Rotating Dense Quark Matter and Anomaly Inflow