Stability of an electroweak string with a fermion condensate

Abstract

A solution of the standard electroweak theory with a single lepton family is constructed, consisting of a cosmic string and a fermion condensate within its core. The stability of this system to small perturbations is examined, and it is found that stability is not enhanced relative to the bare electroweak string. The presence of quark zero modes is shown to violate the existence criteria for embedded defects.

13 pages, preprint DAMTP 94-9, SWAT/23

References in corpus (3)

• Detailed Stability Analysis of Electroweak Strings
• Electroweak Baryogenesis with Electroweak Strings
• Stability of Two Doublet Electroweak Strings

Cited by in corpus (23)

• Fermions Destabilize Electroweak Strings
• Zero Modes on Linked Strings
• Non-Abelian strings and domain walls in two Higgs doublet models
• Sphalerons, spectral flow, and anomalies
• Zero modes of fermions with general mass matrix
• Neutrino Zero Modes on Electroweak Strings
• Index theorem and Majorana zero modes along a non-Abelian vortex in a color superconductor
• The Dirac Sea Contribution To The Energy Of An Electroweak String
• Stable $Z$-strings with topological polarization in two Higgs doublet model
• Generic Current-Carrying Strings
• Topological Defects in the Georgi-Machacek Model
• Perturbed Electroweak Strings and Fermion Zero Modes
• Fermions on the Electroweak String
• A global anomaly from the Z-string
• Cosmic Electroweak Strings
• Brane Realization of Nambu Monopoles and Electroweak Strings
• Effect of Quark Scatter on Baryogenesis by Electroweak Strings
• Topological Incarnations of Electroweak Defects
• Stabilizing the Semilocal String with a Dilatonic Coupling
• Neutrino zeromodes on electroweak strings in light of topological insulators
• Scattering from Electroweak Strings
• A ${\mathbf{Z}}_2$ Classification for 2D Fermion Level Crossing
• Electroweak Strings, Zero Modes and Baryon Number