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Traversable Wormholes in Einstein-Dirac-Maxwell Theory

Jose Luis Blázquez-Salcedo, Christian Knoll, and Eugen Radu
Phys. Rev. Lett. 126, 101102 – Published 9 March 2021
Physics logo See synopsis: Wormholes Open for Transport

Abstract

We construct a specific example of a class of traversable wormholes in Einstein-Dirac-Maxwell theory in four spacetime dimensions, without needing any form of exotic matter. Restricting to a model with two massive fermions in a singlet spinor state, we show the existence of spherically symmetric asymptotically flat configurations which are free of singularities, representing localized states. These solutions satisfy a generalized Smarr relation, being connected with the extremal Reissner-Nordström black holes. They also possess a finite mass M and electric charge Qe, with Qe/M>1. An exact wormhole solution with ungauged, massless fermions is also reported.

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  • Received 30 October 2020
  • Revised 22 January 2021
  • Accepted 29 January 2021

DOI:https://doi.org/10.1103/PhysRevLett.126.101102

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

synopsis

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Wormholes Open for Transport

Published 9 March 2021

New theories of wormholes—postulated tunnels through spacetime—explore whether they could be traversable by humans.

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Authors & Affiliations

Jose Luis Blázquez-Salcedo1,2, Christian Knoll2, and Eugen Radu3

  • 1Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid, E-28040 Madrid, Spain
  • 2Institut für Physik, Universität Oldenburg, Postfach 2503, D-26111 Oldenburg, Germany
  • 3Departamento de Matemática da Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, 3810-183 Aveiro, Portugal

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Issue

Vol. 126, Iss. 10 — 12 March 2021

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