DBI Global Strings

Understand

In this note we present global string solutions which are a generalization of the usual field theory global vortices when the kinetic term is DBI.

• Such vortices can result from the spontaneous symmetry breaking in the potential felt by a D3-brane.
• In a previous paper (0706.0485), the DBI instanton solution was constructed which develops a "wrinkle" for stringy heights of the potential.
• A similar effect is also seen for the DBI vortex solution.