4 papers
More accurate gravitational wave backgrounds from cosmic strings
Jeremy M. Wachter, Ken D. Olum, Jose J. Blanco-Pillado
We derive a general procedure for calculating the gravitational wave background (GWB) from cosmic string loops whose typical shape evolves over time, as in gravitational backreacti…
Numerical gravitational backreaction on cosmic string loops from simulation
Jeremy M. Wachter, Ken D. Olum, Jose J. Blanco-Pillado +2
We report on the results of performing computational gravitational backreaction on cosmic string loops taken from a network simulation. The principal effect of backreaction is to s…
Effective Actions for Domain Wall Dynamics
Jose J. Blanco-Pillado, Alberto GarcÃa MartÃn-Caro, Daniel Jiménez-Aguilar +1
We introduce a systematic method to derive the effective action for domain walls directly from the scalar field theory that gives rise to their solitonic solutions. The effective a…
Global String Instantons
Jose J. Blanco-Pillado, Georgios Fanaras, Alexander Vilenkin
We study the formation of gravitating global strings through quantum mechanical tunneling. The instantons that describe the nucleation process are characterized by two parameters:…