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

References in corpus (22)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
• First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
• First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
• First M87 Event Horizon Telescope Results. II. Array and Instrumentation
• First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
• Traversable wormholes: Some simple examples
• Traversable wormholes from surgically modified Schwarzschild spacetimes
• How to tell a gravastar from a black hole
• Energy conditions in the epoch of galaxy formation
• Stability of Chaplygin gas thin-shell wormholes
• Plane symmetric thin-shell wormholes: solutions and stability
• Cylindrical thin-shell wormholes
• Gravastars supported by nonlinear electrodynamics
• Can accretion disk properties distinguish gravastars from black holes?
• Thin shell wormholes in higher dimensiaonal Einstein-Maxwell theory
• Thin-shell wormholes in dilaton gravity
• Vaidya spacetimes, black-bounces, and traversable wormholes
• Black hole mimickers: regular versus singular behavior
• Phantom stars and topology change
• Thin-shell wormholes with a generalized Chaplygin gas
• Thin-shell wormholes in Brans-Dicke gravity