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arXiv · 2210.04905

Matter traveling through a wormhole

Karina Calhoun·Brendan Fay·Ben Kain
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Abstract

We revisit the numerical evolution of Ellis-Bronnikov-Morris-Thorne wormholes, which are constructed with a massless real ghost scalar field. For our simulations, we have developed a new code based on the standard 3+1 foliation of spacetime. We confirm that, for the massless symmetric wormhole, a pulse of regular scalar field causes the wormhole throat to collapse and form an apparent horizon, while a pulse of ghost scalar field can cause the wormhole throat to expand. As a new result, we show that it is possible for a pulse of regular matter to travel through the wormhole and then to send a light signal back before the wormhole collapses. We also evolve pulses of matter traveling through massive asymmetric wormholes, which has not previously been simulated.

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Karina Calhoun, Brendan Fay, Ben Kain. 2022-10-10. Matter traveling through a wormhole. https://doi.org/10.1103/physrevd.106.104054

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