Blázquez-Salcedo Jose Luis, Knoll Christian, Radu Eugen
Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
Institut für Physik, Universität Oldenburg, Postfach 2503, D-26111 Oldenburg, Germany.
Phys Rev Lett. 2021 Mar 12;126(10):101102. doi: 10.1103/PhysRevLett.126.101102.
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 Q_{e}, with Q_{e}/M>1. An exact wormhole solution with ungauged, massless fermions is also reported.
我们在四维时空的爱因斯坦 - 狄拉克 - 麦克斯韦理论中构建了一类可穿越虫洞的具体示例，无需任何形式的奇异物质。限制在一个具有处于单态旋量态的两个大质量费米子的模型中，我们证明了存在无奇点的球对称渐近平直构型，它们代表局域态。这些解满足广义斯马尔关系，与极端雷斯纳 - 诺德斯特龙黑洞相关。它们还具有有限质量(M)和电荷(Q_{e})，且(Q_{e}/M>1)。还报道了一个具有无规范、无质量费米子的精确虫洞解。
