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<p>We propose a novel way to regularize the JNW globally naked singularity, which is sourced by the canonical Einstein minimally coupled scalar field (EMS). The key idea is to complexify (Wick rotate) the JNW parameters, this yields a regular metric that surprisingly represents a twice asymptotically flat regular traversable wormhole, famously known as the Ellis class III wormhole sourced by the ghost EMS. We begin by arguing that the JNW solution belongs to a hierarchy of actions describing different gravity theories, which indicates that a regularized version of JNW automatically provides corresponding regular versions of the solution within the hierarchy of these gravity theories.</p>

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Einstein frame regularization of the JNW spacetime: from Brans–Dicke singularity to Ellis wormhole

  • 期刊论文

  • 发表日期：

    2026年4月12日

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  • A. Bhattacharya,
  • R. N. Izmailov,
  • R. Kh. Karimov

摘要

We propose a novel way to regularize the JNW globally naked singularity, which is sourced by the canonical Einstein minimally coupled scalar field (EMS). The key idea is to complexify (Wick rotate) the JNW parameters, this yields a regular metric that surprisingly represents a twice asymptotically flat regular traversable wormhole, famously known as the Ellis class III wormhole sourced by the ghost EMS. We begin by arguing that the JNW solution belongs to a hierarchy of actions describing different gravity theories, which indicates that a regularized version of JNW automatically provides corresponding regular versions of the solution within the hierarchy of these gravity theories.