Skyrme strings

Muneto Nitta, Noriko Shiiki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We construct nontopological string solutions with U(1) Noether charge in the Skyrme model with a pion mass term, and examine their stability by taking linear perturbations. The solution exhibits a critical angular velocity beyond which the configuration energetically prefers to decay by emitting pions. This critical point is observed as a cusp in the relation between energy and charge. We find that the maximum length for the string to be stable is comparable to the size of one skyrmion. Beyond the length, it is unstable to decay. This instability raises the possiblity of dynamical realization of Skyrme strings from monopole strings inside a domain wall.

Original languageEnglish
Pages (from-to)829-838
Number of pages10
JournalProgress of Theoretical Physics
Volume119
Issue number5
DOIs
Publication statusPublished - 2008 May

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strings
pions
critical velocity
decay
angular velocity
cusps
monopoles
domain wall
critical point
perturbation
configurations
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Skyrme strings. / Nitta, Muneto; Shiiki, Noriko.

In: Progress of Theoretical Physics, Vol. 119, No. 5, 05.2008, p. 829-838.

Research output: Contribution to journalArticle

Nitta, Muneto ; Shiiki, Noriko. / Skyrme strings. In: Progress of Theoretical Physics. 2008 ; Vol. 119, No. 5. pp. 829-838.
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