Exact rotating magnetic traversable wormhole satisfying the energy conditions

Miranda, Galaxia; Águila, Juan Carlos Del; Matos, Tonatiuh

doi:10.1103/physrevd.99.124045

Cited by 12 publications

(9 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, asymptotic atness is a necessary requirement if a wormhole is expected to be observable from distant regions with small curvature. Some phantom-free wormhole solutions in GR can be recalled, beginning with Kerr's metric with a large angular momentum and Zipoy's static vacuum solution [346] as well as their electromagnetic and scalar extensions [71,239], but all of them possess a naked ring singularity that bounds a disk playing the role of a throat. Therefore, despite their asymptotic atness, they can hardly be welcomed.…”

Section: Cylindrical Wormholesmentioning

confidence: 99%

Cylindrical systems in general relativity

Бронников

Santos

Wang

2020

Class. Quantum Grav.

View full text Add to dashboard Cite

With the arrival of the era of gravitational wave astronomy, the strong gravitational field regime will be explored soon in various aspects. In this article, we provide a general review over cylindrical systems in Einstein's theory of general relativity. In particular, we first review the general properties, both local and global, of several important solutions of Einstein's field equations, including the Levi-Civita and Lewis solutions and their extensions to include the cosmological constant and matter fields, and pay particular attention to properties that represent the generic features of the theory, such as the formation of the observed extragalactic jets and gravitational Faraday rotation. We also review studies of cylindrical wormholes, gravitational collapse and Hoop conjecture, and polarizations of gravitational waves. In addition, by rigorously defining cylindrically symmetric spacetimes, we clarify various (incorrect) claims existing in the literature, regarding to the generality of such spacetimes.

show abstract

Section: Cylindrical Wormholesmentioning

confidence: 99%

Cylindrical systems in general relativity

Бронников

Santos

Wang

2020

Class. Quantum Grav.

View full text Add to dashboard Cite

show abstract

“…The construction of the analytic wormhole solutions in various theories become quite prominent nowadays [18][19][20][21][22][23][24][25][26][27]. In particular, the paper [18] generalizes the Ellis wormhole to carry electric charges in the Einstein-Maxwell dilaton (EMD) theory where the dilaton is phantomlike.…”

Section: Introductionmentioning

confidence: 99%

Charged Ellis wormhole and black bounce

Huang

Yang

2019

Phys. Rev. D

View full text Add to dashboard Cite

By replacing the scalar φ with iφ in the solution constructed in Ref [1], we obtain electrically-charged wormhole and black hole solutions in the Einstein-Maxwell-scalar theory, in which the scalar is a phantom field coupled to the Maxwell field non-minimally.Our solutions are simpler than the previously-known charged wormholes in the Einstein-Maxwell-dilaton theory in that both the scalar and the radius of the foliating sphere of our solutions are independent of electric charge. The wormhole solution has two asymptotically flat regions and reduces to Ellis wormhole when the charge is zero. We draw the embedding diagrams for the wormholes and demonstrate that the two sides are asymmetric. As the charge increases, horizons will appear, and the wormhole becomes a black hole, with no curvature singularity but a wormhole throat or a bounce. We analyze black hole thermodynamics and the causal structure. We also determine the photon spheres of both the wormhole and the black hole and discuss their observable characteristics.

show abstract

“…The line element is roughly based on the axially symmetrical WH space-times (specifically the so-called ring WHs) found in [15,21], but with the element g tt of the inverse metric tensor modified so that the property ψ| q < 0 holds for any conserved quantity p i . Evidently, the construction of this metric is guided by geometrical arguments rather than physical significance.…”

Section: A Geodesically Complete Wormhole Space-timementioning

confidence: 99%

Geodesics near a curvature singularity of stationary and axially symmetric space–times

Águila¹,

Matos²

2020

Class. Quantum Grav.

Self Cite

View full text Add to dashboard Cite

In this work we study the local behavior of geodesics in the neighborhood of a curvature singularity contained in stationary and axially symmetric space–times. Apart from these properties, the metrics we shall focus on will also be required to admit a quadratic first integral for their geodesics. In particular, we search for the conditions on the geometry of the space–time for which null and time-like geodesics can reach the singularity. These conditions are determined by the equations of motion of a freely-falling particle. We also analyze the possible existence of geodesics that do not become incomplete when encountering the singularity in their path. The results are stated as criteria that depend on the inverse metric tensor along with conserved quantities such as energy and angular momentum. As an example, the derived criteria are applied to the Plebański–Demiański class of space–times. Lastly, we propose a line element that describes a wormhole whose curvature singularities are, according to our results, inaccessible to causal geodesics.

show abstract

Exact rotating magnetic traversable wormhole satisfying the energy conditions

Cited by 12 publications

References 26 publications

Cylindrical systems in general relativity

Cylindrical systems in general relativity

Charged Ellis wormhole and black bounce

Geodesics near a curvature singularity of stationary and axially symmetric space–times

Contact Info

Product

Resources

About