2018/07/12 by Juan Maldacena, Alexey Milekhin, Maldacena, Juan +4 · 2 voices · 18 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.1807.04726
28+10 pages, 8 figures. v2: Further restriction on the regime of validity in section 5.5. References added v3: minor typos
arxiv published 2018/07/12 · arxiv created 2020/11/03 · arxiv updated 2020/11/05
We present a wormhole solution in four dimensions. It is a solution of an Einstein Maxwell theory plus charged massless fermions. The fermions give rise to a negative Casimir-like energy, which makes the wormhole possible. It is a long wormhole that does not lead to causality violations in the ambient space. It can be viewed as a pair of entangled near extremal black holes with an interaction term generated by the exchange of fermion fields. The solution can be embedded in the Standard Model by making its overall size small compared to the electroweak scale.