
arXiv: 2211.06481
handle: 11588/900717
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
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
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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