Symmetric Thin-Shell Wormholes from a Regularized String-Cloud Black Hole: Energy Conditions, Multi-Fluid Stability, and Optical Signatures

Zijun Zhong, Jonathan A. Reboucas, Edson Otoniel +1

We construct a symmetric thin-shell wormhole from two copies of the positive-lapse exterior of a rationally regularized Letelier--Alencar string-cloud black hole with a finite-curv…