Thin-shell traversable wormhole crafted from a regular black hole with asymptotically Minkowski core

Abstract

Recently, a novel model for a regular black hole was advocated which possesses an asymptotically Minkowski core implemented via an exponential suppression (in the core region) of the Misner-Sharp quasi-local mass. Using this regular black hole as a template, we shall construct a spherically symmetric thin-shell traversable wormhole using the "cut-and-paste" technique, thereby constructing yet another black hole mimicker. The surface stress-energy at the wormhole throat is calculated, and the stability of the wormhole is analyzed. An important result is that, (as compared to their Schwarzschild thin-shell counterparts), increasing the exponential suppression of the Misner-Sharp quasi-local mass by increasing the suppression parameter "a", also considerably increases the stability regions for these thin-shell wormholes, and furthermore minimizes the amount of energy condition violating exotic matter required to keep the wormhole throat open.

V1: 28 pages; 9 figures; V2: 7 references added; no physics changes

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Cited by in corpus (8)

• Dynamic wormhole geometries in hybrid metric-Palatini gravity
• Traversable wormholes with like--Casimir complexity supported with arbitrarily small amount of exotic matter
• Thin shells in (2+1)-dimensional F(R) gravity
• Construction of a traversable wormhole from a suitable embedding function
• Quasi normal modes of a Casimir--like traversable wormhole through the semi-analytical WKB approach
• Thin shells in F(R) gravity with non-constant scalar curvature
• General class of "quantum deformed" regular black holes
• Wormhole geometries induced by action-dependent Lagrangian theories