Macroscopic Charged Heterotic String

TL;DR

This paper presents classical solutions for charged heterotic strings that carry electric currents, exhibit combined electric and magnetic fields, and demonstrate force cancellations, with some solutions preserving partial supersymmetry.

Contribution

It provides new classical solutions for charged heterotic strings, including multi-string configurations and analysis of supersymmetry breaking.

Findings

Force between parallel strings cancels out.

Solutions carry both electric and magnetic fields.

Some solutions preserve partial supersymmetry.

Abstract

Classical solutions of equations of motion in low energy effective field theory, describing fundamental charged heterotic string, are found. These solutions automatically carry an electric current equal to the charge per unit length, and hence are accompanied by both, electric and magnetic fields. Force between two parallel strings vanish due to cancellation between electric and magnetic forces, and also between graviton, dilaton, and antisymmetric tensor field induced forces. Multi-string solutions describing configuration of parallel strings are also found. Finally, the solutions are shown to possess partially broken space-time supersymmetry.