3D Spacetimes Construction from $$(1+1)$$(1+1)D Kitaev Superconductor Model
Sign Up to like & getrecommendations! Published in 2018 at "Foundations of Physics"
DOI: 10.1007/s10701-018-0204-x
Abstract: This is a proceedings based on the talk that was made in the workshop “Black Holes, Gravitational Waves and Spacetime Singularities” at Vatican Observatory on 9–12 May 2017. Since then we have constructed some corrections,… read more here.
Keywords: spacetime; superconductor model; kitaev superconductor;
Type N Einstein space Time Machine spacetime
Sign Up to like & getrecommendations! Published in 2017 at "Annals of Physics"
DOI: 10.1016/j.aop.2017.04.012
Abstract: Abstract We present an Einstein space axially symmetry spacetime admitting closed timelike curves (CTCs) which appear after a certain instant of time, i.e., a time machine spacetime. The spacetime is a four-dimensional generalization of flat… read more here.
Keywords: space; machine spacetime; time machine; spacetime ... See more keywords
An efficient dissipation–preserving Legendre–Galerkin spectral method for the Higgs boson equation in the de Sitter spacetime universe
Sign Up to like & getrecommendations! Published in 2021 at "Applied Numerical Mathematics"
DOI: 10.1016/j.apnum.2020.10.013
Abstract: Abstract Since the emergence of numerical methods in mathematical modeling, fundamental properties such as convergence, efficiency, computational accuracy, and stability have been considered crucial for deciding the utility of a numerical approach. In more recent… read more here.
Keywords: higgs boson; energy; method; scheme ... See more keywords
What Is Spacetime?
Sign Up to like & getrecommendations! Published in 2018 at "Nature"
DOI: 10.1038/d41586-018-05095-z
Abstract: Physicists believe that at the tiniest scales, space emerges from quanta. What might these building blocks look like?Physicists believe that at the tiniest scales, space emerges from quanta. What might these building blocks look like? read more here.
Keywords: spacetime;
Peeling of Dirac field on Kerr spacetime
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DOI: 10.1063/1.5121433
Abstract: In a recent paper with Nicolas [Ann. Henri Poincare 20(10), 3419–3470 (2019); arXiv:1801.08996], we studied the peeling for scalar fields on Kerr metrics. The present work extends these results to Dirac fields on the same… read more here.
Keywords: dirac field; regularity; kerr; peeling dirac ... See more keywords
Quantum metric for null separated events and spacetime atoms
Sign Up to like & getrecommendations! Published in 2019 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab0a40
Abstract: Recently, a proposal has been made to figure out the expected discrete nature of spacetime at the smallest scales in terms of atoms of spacetime, capturing their effects through a scalar $\rho$, related to their… read more here.
Keywords: separated events; null separated; quantum metric; spacetime ... See more keywords
Zero-point gravitational field equations
Sign Up to like & getrecommendations! Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac0310
Abstract: We study the recently reported qmetric (or zero-point-length) expressions of the Ricci (bi)scalar R (q) (namely, expressions of the Ricci scalar in a spacetime with a limit length L 0 built in), focusing specifically on… read more here.
Keywords: field; point gravitational; zero point; field equations ... See more keywords
On the non-linear stability of the Cosmological region of the Schwarzschild-de Sitter spacetime
Sign Up to like & getrecommendations! Published in 2023 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/acdb3f
Abstract: The non-linear stability of the sub-extremal Schwarzschild-de Sitter spacetime in the stationary region near the conformal boundary is analysed using a technique based on the extended conformal Einstein field equations and a conformal Gaussian gauge.… read more here.
Keywords: spacetime; region; schwarzschild sitter; stability ... See more keywords
Gravitational Lensing in the Kerr Spacetime: An Analytic Approach for Light and High-Frequency Gravitational Waves
Sign Up to like & getrecommendations! Published in 2025 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ae134a
Abstract: Astrophysical observations in the electromagnetic spectrum as well as detected gravitational wave signals indicate that the Kerr spacetime can be used to describe the spacetime around candidates for rotating black holes. While the geodesic structure… read more here.
Keywords: kerr spacetime; spacetime; gravitational waves; high frequency ... See more keywords
The representation of spacetime through time functions
Sign Up to like & getrecommendations! Published in 2025 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ae2736
Abstract: The properties of the stable distance over stable spacetimes are used as a reference to propose a simplified, abstract notion of spacetime. Our analysis establishes that the fundamental structures of spacetime, namely its topology, causal… read more here.
Keywords: spacetime; time functions; representation spacetime; time ... See more keywords
Classification of static plane symmetric spacetime according to their self similar vector fields
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DOI: 10.1088/1402-4896/ada097
Abstract: This article discusses the use of self-similar symmetry to analyze static plane symmetric spacetime. A computer algorithm is employed to convert the symmetry equations, resulting in a tree structure known as a Riff tree, which… read more here.
Keywords: static plane; plane symmetric; spacetime; self similar ... See more keywords