Results 41 to 50 of about 5,317 (165)
, 2021 : We explore the construction and stability of asymptotically anti-de Sitter Euclidean wormholes in a variety of models. In simple ad hoc low-energy models, it is not hard to construct two-boundary Euclidean wormholes that dominate over disconnected ...
core +6 more sources
A Critical Analysis of Optimization Algorithms for Cultural Heritage Conservation and Management
Engineering Reports, Volume 8, Issue 10, October 2026.Methodological framework and decision‐support roadmap for optimization algorithms in cultural heritage conservation and management. ABSTRACT Heritage buildings symbolize cultural identity, architectural character, and historical epitome of communities.
Eslam Mohammed Abdelkader +6 more
wiley +1 more source
Elliptical Space with the McVittie Metrics
UniverseThe main feature of elliptical space—the topological identification of its antipodal points—could be fundamental for understanding the nature of the cosmological redshift.
Vladimir N. Yershov
doaj +1 more source
Collapsing Wormholes Sustained by Dustlike Matter
Universe, 2020 It is well known that static wormhole configurations in general relativity (GR) are possible only if matter threading the wormhole throat is “exotic”—i.e., violates a number of energy conditions.
Pavel E. Kashargin, Sergey V. Sushkov
doaj +1 more source
From Core to Field: Pattern Selection in Dissolving Fractures
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Chemical erosion governs the evolution of fractures across Earth systems, which manifests in three distinct dissolution patterns. However, how the boundaries between these regimes depend on system scale remains an open question, and no predictive theory has successfully linked laboratory observations to field‐scale behaviors. Here we integrate
Kai Li +6 more
wiley +1 more source
A review of preferential flow and transport through root channels
Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.Abstract Preferential flow can contribute up to 80%–90% of the flow and transport in the vadose zone. The root channels are the most prevalent form of preferential pathways. They create an evolving network of preferential pathways and are biogeochemical hotspots due to preferential transport of nutrients and other organics, colonization of bacteria ...
Ishank Agarwal, Richa Ojha, Saumyen Guha
wiley +1 more source
Quadrupole Perturbations of Slowly Spinning Ellis–Bronnikov Wormholes
UniverseWe study the axial and polar perturbations of slowly rotating Ellis–Bronnikov wormholes in General Relativity, applying a perturbative double expansion.
Bahareh Azad +4 more
doaj +1 more source
A 10d construction of Euclidean axion wormholes in flat and AdS space
Journal of High Energy Physics, 2023 Euclidean wormhole geometries sourced by axions and dilatons are puzzling objects in quantum gravity. From one side of the wormhole to the other, the scalar fields traverse a few Planck lengths in field space and so corrections from the UV might ...
Gregory J. Loges +2 more
doaj +1 more source
Tides and Energy Conditions in Einstein–Gauss–Bonnet Thin-Shell Wormholes
UniverseIn this article we study spherical thin-shell wormholes in five-dimensional Einstein–Gauss–Bonnet gravity. We show that configurations supported by non-exotic matter, that is matter satisfying the weak energy condition, are possible at the same time that
Ernesto F. Eiroa +2 more
doaj +1 more source
Fortschritte der Physik, Volume 74, Issue 8, August 2026.ABSTRACT We apply the boundary‐only isothermal formulation of finite‐distance weak gravitational deflection to regular black holes, black‐bounces, traversable wormholes, non‐asymptotically flat backgrounds, and static quadrupolar spacetimes. The methodological advance is not a new value for a known bending angle.
Reggie C. Pantig, Ali Övgün
wiley +1 more source