Rotating traversable wormholes

Teo, Edward

doi:10.1103/physrevd.58.024014

Cited by 227 publications

(303 citation statements)

References 27 publications

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“…The static zero tidal force Teo's rotating wormhole [27]. This is thus consistent with the lower-dimensional study, so that (3+1)-d curved traversable wormholes allow humans or some advanced (3+1)-d civilisations to perhaps some day be able to traverse them without direct contact with exotic matter.…”

Section: Discussionsupporting

confidence: 74%

Curved traversable wormholes in (3+1)-dimensional spacetime

Saw

Chew

2014

Gen Relativ Gravit

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We present the general method of constructing curved traversable wormholes in (3+1)-d spacetime and proceed to thoroughly discuss the physics of a zero tidal force metric without cross-terms.The (3+1)-d solution is compared with the recently studied lower-dimensional counterpart, where we identify that the much richer physics -involving pressures and shear forces of the mass-energy fluid supporting the former -is attributed to the mixing of all three spatial coordinates. Our (3+1)-d universe is the lowest dimension where such nontrivial terms appear. An explicit example, the static zero tidal force (3+1)-d catenary wormhole is analysed and we show the existence of a geodesic through it supported locally by non-exotic matter, similar to the (2+1)-d version. A key difference is that positive mass-energy is used to support the entire (3+1)-d catenary wormhole, though violation of the null energy condition in certain regions is inevitable. This general approach of first constructing the geometry of the spacetime and then using the field equations to determine the physics to support it has the potential to discover new solutions in general relativity or to generalise existing ones. For instance, the metric of a time-evolving inflationary wormhole with a conformal factor can actually be geometrically constructed using our method.

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Section: Discussionsupporting

confidence: 74%

Curved traversable wormholes in (3+1)-dimensional spacetime

Saw

Chew

2014

Gen Relativ Gravit

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“…Rotating traversable wormholes can be described by a general stationary and axisymmetric metric, proposed by Teo in the form [33] …”

Section: Rotating Traversable Wormholesmentioning

confidence: 99%

“…The general form of the metric describing rotating traversable wormholes was studied in [33]. This work deduces the properties which a regular wormhole spacetime should satisfy, without obtaining explicitly a particular exact solution of the gravitational field equations.…”

Section: Introductionmentioning

confidence: 99%

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On the shadow of rotating traversable wormholes

et al. 2018

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We revisit the shadow of rotating traversable wormholes discussing the role of the wormhole throat in the shadow formation. For certain classes of wormholes the throat serves as a potential barrier for light rays with particular impact parameters, thus modifying the shadow shape. We consider a couple of wormhole solutions and examine the structure of their shadow images, and the intrinsic mechanisms for their formation. Some of the shadows possess cuspy edges, which arise due to the interplay of two distinct families of unstable spherical orbits. These solutions provide examples, in which the explicit mechanism for cusp formation can be uncovered.

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“…The possibility of two way travel in time becomes theoretically possible when the two regions belong to the same spacetime, such phenomenon is time machine. The wormhole spacetime has been investigated in the literature in various schemes such as a non-static axially symmetric wormhole [1], wormholes with cylindrical symmetry [2], wormholes supported by a cosmological constant [3], thin-shell wormholes [4], and electrically charged static wormholes [5] (For a review see [6]). Morris and Thorne [7] suggested the idea of a traversable wormhole suitable for travel by humans for interstellar journey and beyond.…”

Section: Introductionmentioning

confidence: 99%

Noncommutative Wormholes in f(R) Gravity with Lorentzian Distribution

et al. 2014

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In this paper, we derive some new exact solutions of static wormholes in f (R) gravity supported by the matter possesses Lorentizian density distribution of a particle-like gravitational source. We derive the wormhole's solutions in two possible schemes for a given Lorentzian distribution: assuming an astrophysically viable F (R) function such as a power-law form and discuss several solutions corresponding to different values of the exponent ( here F = df dR ). In the second scheme, we consider particular form of two shape functions and have reconstructed f(R) in both cases. We have discussed all the solutions with graphical point of view.

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Rotating traversable wormholes

Cited by 227 publications

References 27 publications

Curved traversable wormholes in (3+1)-dimensional spacetime

Curved traversable wormholes in (3+1)-dimensional spacetime

On the shadow of rotating traversable wormholes

Noncommutative Wormholes in f(R) Gravity with Lorentzian Distribution

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