Results 81 to 90 of about 8,712 (220)
Thin-Shell Wormholes in Einstein and Einstein–Gauss–Bonnet Theories of Gravity
We review recent works on the possibility for eternal existence of thin-shell wormholes on Einstein and Einstein–Gauss–Bonnet gravity. We introduce thin-shell wormholes that are categorized into a class of traversable wormhole solutions.
Takafumi Kokubu, Tomohiro Harada
doaj +1 more source
Dependence of Mineral Dissolution Rates on Two‐Phase Hydrodynamics in Single Pores
Abstract Multiphase flow and mineral reactions co‐exist in many subsurface systems, and thus elucidating and quantifying the impacts of multiphase flow on mineral reaction rates are crucial. Our study established a benchmark experiment on calcite dissolution in cylindrical pores in slug flow, and performed a series of simulations using a validated pore‐
Xin Wang, Hang Deng
wiley +1 more source
Exploring a novel Einstein–Rosen BTZ wormhole
We introduce a novel Einstein–Rosen BTZ wormhole metric as a solution to the Einstein field equations with a negative cosmological constant and explore in detail its various phenomenological aspects. We show that the wormhole metric is characterized by a
Ankit Anand +2 more
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Advances in Solid‐Phase Processing Techniques: Innovations, Applications, and Future Perspectives
Based on practical manufacturing challenges, this review examines advanced solid‐phase processing techniques that overcome the inherent limitations of conventional melting‐based and traditional solid‐phase manufacturing, enabling the production of higher‐performance components at reduced cost through process innovation and improved supply‐chain ...
Tianhao Wang
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Wormhole solutions in deformed space-time
We construct and analyse wormhole solutions in quantised space-time. The field equations are constructed from the deformed wormhole metric in the proper reference frame using tetrads.
Harsha Sreekumar, E. Harikumar
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Deforming the Double‐Scaled SYK and Reaching the Stretched Horizon From Finite Cutoff Holography
ABSTRACT We study the properties of the double‐scaled SYK (DSSYK) model under chord Hamiltonian deformations based on finite cutoff holography for general dilaton gravity theories with Dirichlet boundaries. The formalism immediately incorporates a lower‐dimensional analog of TT¯(+Λ2)$\text{T}\overline{\text{T}}(+\Lambda _2)$ deformations, denoted T2 ...
Sergio E. Aguilar‐Gutierrez
wiley +1 more source
The Casimir Effect in Finite-Temperature and Gravitational Scenarios
In this paper, we review some recent findings related to the Casimir effect. Initially, the thermal corrections to the vacuum Casimir energy density are calculated, for a quantum scalar field, whose modes propagate in the (3+1)-dimensional Euclidean ...
Valdir Barbosa Bezerra +4 more
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A Conceptual Framework for Assessing Soil Structural Attributes Across Contrasting Land‐Use Types
ABSTRACT Soil structure governs ecosystem functioning across scales, but its complexity requires integrative approaches that capture geometric and functional properties. This study proposes a methodological framework that integrates field‐based visual evaluation of soil structure (VESS), X‐ray computed tomography (CT) and soil hydraulic property (SHP ...
Niklas Schmücker +4 more
wiley +1 more source
Bulk view of teleportation and traversable wormholes
We construct detailed AdS2 gravity solutions describing the teleportation through a traversable wormhole sending a state from one side of the wormhole to the other.
Dongsu Bak, Chanju Kim, Sang-Heon Yi
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Rat swarm position update mechanism in HRSA‐RSO, illustrating the collective exploration behavior around the prey target (A*, B*). ABSTRACT The permutation flow shop scheduling problem (PFSSP) is a classical NP‐hard problem that aims to determine an optimal job sequence across machines to minimize makespan.
Mourad Mzili +5 more
wiley +1 more source

