We review in detail a number of approaches that have been adopted to try and explain the
remarkable observation of our accelerating universe. In particular we discuss the arguments …

In this work, we construct traversable wormhole geometries in the context of f (R) modified
theories of gravity. We impose that the matter threading the wormhole satisfies the energy …

A fundamental ingredient in wormhole physics is the flaring-out condition at the throat which,
in classical general relativity, entails the violation of the null energy condition. In this work …

This article evaluates the stability constraints of higher-dimensional geometry of thin-shell
wormholes developed from the two equivalent copies of inner and outer d-dimensional …

First, the ideas introduced in the wormhole research field since the work of Morris and
Thorne are reviewed, namely, the issues of energy conditions, wormhole construction …

It is by now apparent that topology is too crude a tool to accurately characterize a generic
traversable wormhole. In two earlier papers we developed a complete characterization of …

Recent times witnessed a significant interest in regularizing, a D → 4 D→ 4 limit, of EGB
gravity initiated by Glavan and Lin Phys. Rev. Lett. 124, 081301 (2020) by re-scaling GB …

We extend previous proofs that violations of the null energy condition are a generic and
universal feature of traversable wormholes to completely nonsymmetric time-dependent …

In this paper, we explore higher-dimensional asymptotically flat wormhole geometries in the
framework of Gauss-Bonnet (GB) gravity and investigate the effects of the GB term, by …

The general form of a stationary, axially symmetric traversable wormhole is discussed. This
provides an explicit class of rotating wormholes that generalizes the static, spherically …