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Spherically Symmetric Wormhole Gravitational Lens Deflection Angle Signifying Braneworld Cosmology |
| Anuar Alias**, Wan Ahmad Tajuddin Wan Abdullah |
Department of Physics, University of Malaya, Kuala Lumpur 50603, Malaysia
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| Cite this article: |
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Anuar Alias, Wan Ahmad Tajuddin Wan Abdullah 2017 Chin. Phys. Lett. 34 060401 |
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Abstract Previously, the gravitational lens of a wormhole was introduced by various researchers. Their treatment was focused basically on the lens signature that describes wormhole geometrical character such as the differences from a black hole or between any various types of wormhole models. The braneworld scenario provides the idea of spacetime with underlying extra-dimensions. The inclusion of extra-dimensional terms in the lens object spacetime line element will result in some variation in the expression for its gravitational lens deflection angle. Thus in this paper we investigate such variation by deriving this deflection angle expression. As such, this paper not only shows the existence of such variation but also suggests the potential utilization of gravitational lensing to prove the existence of extra dimensions by studying the deflection angle characteristic in accordance with the spacetime expansion rate of the universe.
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Received: 10 January 2017
Published: 23 May 2017
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| PACS: |
04.50.Gh
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(Higher-dimensional black holes, black strings, and related objects)
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11.25.Wx
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(String and brane phenomenology)
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98.80.Cq
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(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
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| Fund: Supported by the Short-Term Research Grant Awarded of University of Malaya. |
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