Experimental and Observational Constraints on Wormhole Models

A special issue of Universe (ISSN 2218-1997).

Deadline for manuscript submissions: 20 June 2025 | Viewed by 795

Special Issue Editor


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Guest Editor
Faculty of Mathematics, Physics and Informatics, University of Gdańsk, Jana Bażyńskiego 8, 80-309 Gdańsk, Poland
Interests: gravitation; compact objects; cosmology

Special Issue Information

Dear Colleagues,

In recent years, groundbreaking experimental advances have propelled a transition of gravitational physics in the strong field regime from a mostly theoretical domain into an increasingly experimental science. The detection of gravitational waves, the imaging of the shadow of a supermassive compact object, and the observation of flares near the center of the Milky Way have provided unprecedented opportunities to test the limits of theoretical physics, including the nature of one of the most fascinating astronomical models, the wormhole, a passage through spacetime that could potentially enable travel over large distances or even through time. Current research on wormhole models faces significant challenges, from the requirement of unobserved matter forms in classical general relativity to stabilize the wormhole throat, to modifications of gravitational theory itself, alongside other physical and mathematical limitations. As such, the development of physically relevant wormhole models remains a timely and relevant task in the field of theoretical physics.

The goal of this Special Issue is to gather a compilation of manuscripts focused on the development and testing of suitable wormhole models that are potentially compatible with state-of-the-art experimental and observational results in order to assess the plausibility of the existence or construction of wormholes in our universe.

Dr. João Luís de Figueiredo Rosa
Guest Editor

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Keywords

  • wormholes
  • compact objects
  • experimental gravitational physics
  • model testing and constraining
  • exotic matter
  • modified theories of gravity
  • energy conditions

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Published Papers (1 paper)

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Research

21 pages, 1410 KiB  
Article
Mimicking Wormholes in Born–Infeld Electrodynamics
by Jose Beltrán Jiménez, Luis J. Garay and María Pérez Garrote
Universe 2024, 10(12), 459; https://doi.org/10.3390/universe10120459 - 18 Dec 2024
Viewed by 554
Abstract
We compute the evolution of linear perturbations on top of a background solution of a general nonlinear electromagnetic theory. This evolution can be described in terms of two effective metrics, and we analyze under what conditions they are conformally related so that they [...] Read more.
We compute the evolution of linear perturbations on top of a background solution of a general nonlinear electromagnetic theory. This evolution can be described in terms of two effective metrics, and we analyze under what conditions they are conformally related so that they can be regarded as analog models of non-trivial gravitational fields in the eikonal approximation. This is the case in Born–Infeld theory. For the background created by a static point electric charge in the Born–Infeld theory, the effective metric describes a wormhole geometry for light rays. Depending on the impact parameter, incoming light rays are either scattered to infinity or approach the wormhole slowing down their pace until they hit the charge at vanishing speed. The same effective wormhole geometry is obtained for a magnetic monopole and a dyon and we relate it to the duality invariance of Born–Infeld electromagnetism. Finally, we analyze the scalar Dirac–Born–Infeld theory and show that the effective wormhole geometry is not generated by a particle with scalar charge. Full article
(This article belongs to the Special Issue Experimental and Observational Constraints on Wormhole Models)
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