Title:
|
Perturbations on domain walls and strings: A covariant theory
|
Author:
|
Garriga Torres, Jaume; Vilenkin, A. (Alexander)
|
Other authors:
|
Universitat de Barcelona |
Abstract:
|
A covariant formalism is developed for describing perturbations on vacuum domain walls and strings. The treatment applies to arbitrary domain walls in (N+1)-dimensional flat spacetime, including the case of bubbles of a true vacuum nucleating in a false vacuum. Straight strings and planar walls in de Sitter space, as well as closed strings and walls nucleating during inflation, are also considered. Perturbations are represented by a scalar field defined on the unperturbed wall or string world sheet. In a number of interesting cases, this field has a tachyonic mass and a nonminimal coupling to the world-sheet curvature. |
Subject(s):
|
-Teoria de camps (Física) -Partícules (Física nuclear) -Field theory (Physics) -Particles (Nuclear physics) |
Rights:
|
(c) The American Physical Society, 1991
|
Document type:
|
Article Article - Published version |
Published by:
|
The American Physical Society
|
Share:
|
|