English

On a Class of Harko-Kovacs-Lobo Wormholes

General Relativity and Quantum Cosmology 2026-06-29 v1

Abstract

The Harko, Kov\'{a}cs, and Lobo wormhole (HKLWH) metric contains two free parameters: one is the wormhole throat r0r_{0}, and the other is a dimensionless deviation parameter γ\gamma with values 0<γ<10<\gamma <1, the latter ensuring the needed violation of the null energy condition at the throat. In this paper, we study the energetics of the HKLWH and the influence of γ\gamma on the tidal forces in the Lorentz-boosted frame. Finally, we apply\ a new concept, namely, the probabilistic identity of the object observed by different external observers in terms of the Fresnel coefficients derived by Tangherlini. The intriguing result is that observations can differ depending on the location of the observer, i.e., there is a nonzero probability that the HKLWH will be identified as a black hole even when γ0\gamma \neq 0.

Keywords

Cite

@article{arxiv.2606.29818,
  title  = {On a Class of Harko-Kovacs-Lobo Wormholes},
  author = {R. Kh. Karimov and R. N. Izmailov and K. K. Nandi},
  journal= {arXiv preprint arXiv:2606.29818},
  year   = {2026}
}

Comments

10 pages, 1 figure