Wormholes supported by chiral fields

K. A. Bronnikov, S. V. Chervon, S. V. Sushkov

We consider static, spherically symmetric solutions of general relativity with a nonlinear sigma model (NSM) as a source, i.e., a set of scalar fields $\Phi =({\Phi }^1,...,{\Phi }^n)$ (so-called…