Results 91 to 100 of about 5,317 (165)

Wormholes

open access: yes
Ein >WormholeRaumzeitwowie< des Suchens nach ihnen. Wormholes ist ein selbstfinanzierter Film. Er war meine Abschlußarbeit als Student des College of Fine Arts, University of New South Wales, Sydney ...

core  

Exploration of GUP-corrected Casimir wormholes in extended teleparallel gravity with matter coupling

open access: yesNuclear Physics B
In this manuscript, we investigate the properties of Casimir wormholes within the framework of extended teleparallel gravity, incorporating the Generalized Uncertainty Principle.
Chaitra Chooda Chalavadi   +2 more
doaj   +1 more source

Shadows and photon spheres in static and rotating traversable wormholes

open access: yesNuclear Physics B
We explore the shadows and photon orbits of both static and rotating traversable wormholes by employing a redshift function in combination with two distinct shape functions.
Takol Tangphati   +3 more
doaj   +1 more source

Echoes and quasi-normal modes of perturbations around Schwarzschild traversable wormholes

open access: yesEuropean Physical Journal C: Particles and Fields
We investigate the waveforms and quasi-normal modes around Schwarzschild traversable wormholes under different field perturbations, including the scalar field, the electromagnetic (vector) field, and the axial gravitational (tensor) field perturbations ...
Hao Yang, Zhong-Wu Xia, Yan-Gang Miao
doaj   +1 more source

On properties of the distribution of virtual wormholes in a vacuum

open access: yesEuropean Physical Journal C: Particles and Fields
A model of spacetime foam in the form of an arbitrary distribution of spherical Euclidean wormholes is considered. A method for constructing the exact solution of Einstein’s Euclidean equations for the metric corresponding to this model is proposed.
A. A. Kirillov, E. P. Savelova
doaj   +1 more source

Giant wormholes in ghost-free bigravity theory

open access: yes, 2020
We study Lorentzian wormholes in the ghost-free bigravity theory described by two metrics, g and f. Wormholes can exist if only the null energy condition is violated, which happens naturally in the bigravity theory since the graviton energy-momentum ...
Volkov M., Sushkov S.
core  

Wormholes from beyond

open access: yes
In a brane-world context in which our universe would be a four-dimensional brane embedded into a five-dimensional spacetime or bulk, wormhole geometries are induced on branes.
Juliano C. S. Neves
core   +1 more source

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