Dynamics of strings between walls

Minom Eto, Toshiaki Fujimori, Takayuki Nagashima, Muneto Nitta, Keisuke Ohashi, Norisuke Sakai

Research output: Contribution to journalConference articlepeer-review


Configurations of vortex-strings stretched between or ending on domain walls were previously found to be 1/4 BPS states. Among zero modes of string positions, the center of mass of strings in each region between two adjacent domain walls is shown to be non-normalizable whereas the rests are normalizable. We study dynamics of vortex-strings stretched between separated domain walls by using two methods, the moduli space (geodesic) approximation of full 1/4 BPS states and the charged particle approximation for string endpoints in the wall effective action. In the first method we obtain the effective Lagrangian explicitly and find the 90 degree scattering for head-on collision. In the second method the domain wall effective action is assumed to be U(1)N gauge theory, and we find a good agreement between two methods for well separated strings. This talk is based on the work [1].

Original languageEnglish
Pages (from-to)444-446
Number of pages3
JournalAIP Conference Proceedings
Publication statusPublished - 2008
Event16th International Conference on Supersymmetry and the Unification of Fundamental Interactions, SUSY08 - Seoul, Korea, Republic of
Duration: 2008 Jun 162008 Jun 21


  • BPS
  • SUSY
  • Solitons

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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