New definition of a wormhole throat

Yoshimune Tomikawa, Keisuke Izumi, and Tetsuya Shiromizu
Phys. Rev. D 91, 104008 – Published 11 May 2015
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  • INTRODUCTION
  • NEW DEFINITION
  • EXAMPLES
  • SUMMARY
  • ACKNOWLEDGMENTS
    • References

    Abstract

    We present a new definition of the wormhole throat including the flare-out condition and the feature corresponding to the traversability for general dynamical spacetimes in terms of null geodesic congruences. We will examine our definition for some examples and see advantages compared to the others.

    • Received 11 March 2015

    DOI:https://doi.org/10.1103/PhysRevD.91.104008

    © 2015 American Physical Society

    Authors & Affiliations

    Yoshimune Tomikawa1, Keisuke Izumi2, and Tetsuya Shiromizu1,3

    • 1Department of Mathematics, Nagoya University, Nagoya 464-8602, Japan
    • 2Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan
    • 3Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan

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    Issue

    Vol. 91, Iss. 10 — 15 May 2015

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