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Physics Letters B
Article . 2022 . Peer-reviewed
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Physics Letters B
Article . 2022
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https://dx.doi.org/10.48550/ar...
Article . 2022
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Non-local gravity wormholes

Authors: Salvatore Capozziello; Nisha Godani;

Non-local gravity wormholes

Abstract

We consider Non-local Gravity in view to obtain stable and traversable wormhole solutions. In particular, the class of Non-local Integral Kernel Theories of Gravity, with the inverse d'Alembert operator in the gravitational action, is taken into account. We obtain constraints for the null energy condition and derive the field equations. Two special cases for the related Klein-Gordon equation are assumed: one where the function in the gravitational action has a linear form and another one with exponential form. In each case, we take into account two forms for scalar fields and derive the shape functions. Asymptotic flatness and flaring-out conditions are checked. Energy conditions and dynamics of the solutions are examined at the throat. The main result is that non-local gravity contributions allow stability and traversability of the wormhole without considering any exotic matter.

12 pages, 6 figures, published in Phys. Lett. B

Country
Italy
Keywords

High Energy Physics - Theory, Modified gravity, Wormhole solutions, Constrained dynamics, Dirac's theory of constraints, Physics, QC1-999, wormhole solutions, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Relativistic gravitational theories other than Einstein's, including asymmetric field theories, General Relativity and Quantum Cosmology, non-local gravity, Non-local gravity, High Energy Physics - Theory (hep-th), Asymptotic procedures (radiation, news functions, \(\mathcal{H} \)-spaces, etc.) in general relativity and gravitational theory, Local structure of morphisms in algebraic geometry: étale, flat, etc., Stability in context of PDEs, modified gravity, Spinor and twistor methods applied to problems in quantum theory

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
48
Top 1%
Top 10%
Top 1%
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gold