https://doi.org/10.1140/epjc/s10052-025-14729-2
Regular Article - Theoretical Physics
Generalized Bronnikov–Ellis wormhole with nonlinear electromagnetic field
1
School of Physical Science and Technology, Research Center of Gravitation, Lanzhou University, 730000, Lanzhou, China
2
Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, Key Laboratory of Quantum Theory and Applications of MoE, Gansu Provincial Research Center for Basic Disciplines of Quantum Physics, Lanzhou University, 730000, Lanzhou, China
3
Research Center for Quantum Physics and Materials, Nantong University, 226019, Nantong, China
a
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Received:
2
April
2025
Accepted:
3
September
2025
Published online:
21
September
2025
Abstract
In this paper, we present a spherically symmetric wormhole in Einstein gravity coupled with the phantom scalar field and the nonlinear electromagnetic field. Numerical results show that this solution violates the Null Energy Condition (NEC), and as the parameters change, the ADM mass of the entire spacetime changes from positive to negative. In addition, we analyze the light ring (LR) of the solution and demonstrate the astronomical observation properties. Especially when negative mass appears, the general LR will not appear, only a “special unstable LR” exists at the throat, which is caused by the repulsive effect of the negative mass on both sides of the wormhole. Finally, we draw the embedding diagram to reflect the geometric characteristics of the wormhole.
© The Author(s) 2025
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