4 papers
Localized Vector Modes on Local Cosmic Strings
Sergio Alameda-Calvo, Jose J. Blanco-Pillado, Jose Queiruga
We investigate the dynamics of vector excitations localized on cosmic strings in the Abelian-Higgs model. These confined gauge field fluctuations behave as massive vector degrees o…
On curvature corrections for field theory cosmic strings
Josu C. Aurrekoetxea, Jose J. Blanco-Pillado, Alberto GarcÃa MartÃn-Caro +1
We present a combined analytical and numerical study of the effective action of field theory cosmic strings in the Abelian-Higgs model in flat space. Starting directly from the und…
Spectral structure of fluctuations around -vortices in the Abelian-Higgs model
A. Alonso-Izquierdo, D. Miguélez-Caballero, J. Queiruga
We study in detail the internal structure of rotationally invariant higher-charge Abelian-Higgs vortices. The symmetry of the normal modes close to the critical regime for type II…
Sphaleron decay on circles
S. Navarro-Obregón, J. Queiruga
We discuss various sphaleron-like solutions on . These solutions are static, but unstable. We explore possible stabilization mechanisms based on the excitation of int…