Fermions Destabilize Electroweak Strings

Abstract

Z-strings in the Weinberg-Salam model including fermions are unstable for all values of the parameters. The cause of this instability is the fermion vacuum energy in the Z-string background. Z-strings with non-zero fermion densities, however, may still be stable.

11 pages; an additional paragraph describes the destabilization of a finite length string

References in corpus (9)

• Electroweak Baryogenesis with Electroweak Strings
• Zero Modes on Linked Strings
• Topologically Stable Electroweak Flux Tube
• Bound States Can Stabilize Electroweak Strings
• Stability of Two Doublet Electroweak Strings
• Metastable Cosmic Strings in Realistic Models
• Stability of an electroweak string with a fermion condensate
• Existence of Double Vortex Solutions
• Fermions on the Electroweak String

Cited by in corpus (30)

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• Cosmology, Particle Physics and Superfluid 3He
• Fermionic Zero Modes on Domain Walls
• Non-Abelian strings and domain walls in two Higgs doublet models
• Zero modes of fermions with general mass matrix
• Neutrino Zero Modes on Electroweak Strings
• The Dirac Sea Contribution To The Energy Of An Electroweak String
• Stable charged cosmic strings
• Stable $Z$-strings with topological polarization in two Higgs doublet model
• Fermion Energies in the Background of a Cosmic String
• Quantum Energies of Strings in a 2+1 Dimensional Gauge Theory
• Topological Defects in the Georgi-Machacek Model
• Perturbed Electroweak Strings and Fermion Zero Modes
• Fermion zero modes in N=2 supervortices
• Quantum stabilization of Z-strings, a status report on D=3+1 dimensions
• Vacuum Energies of Non--Abelian String--Configurations in 3+1 Dimensions
• Cosmic Electroweak Strings
• Effect of Quark Scatter on Baryogenesis by Electroweak Strings
• Brane Realization of Nambu Monopoles and Electroweak Strings
• Fermion zero modes in Painlevé-Gullstrand black hole
• Isospin Invariance and the Vacuum Polarization Energy of Cosmic Strings
• Vortices observed and to be observed
• Quantum Stabilization of a Closed Nielsen-Olesen String
• Stabilizing the Semilocal String with a Dilatonic Coupling
• Quantum Stabilization of Cosmic Strings
• Electroweak strings with dark scalar condensates and their (in)stability
• Zero Modes of Massive Fermions Delocalize from Axion Strings
• Neutrino zeromodes on electroweak strings in light of topological insulators
• Quantum stabilization of a hedgehog type of cosmic string
• Cosmic Strings Stabilized by Fermion Fluctuations