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arXiv · 1805.04679

Strong field lensing by Damour-Solodukhin wormhole

K. K. Nandi·R. N. Izmailov·E. R. Zhdanov·Amrita Bhattacharya
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Abstract

We investigate the strong field lensing observables for the Damour-Solodukhin wormhole and examine how small the values of the deviation parameter $\lambda $ need be for reproducing the observables for the Schwarzschild black hole. While the extremely tiny values of $\lambda$ indicated by the matter accretion or Hawking evaporation are not disputed, it turns out that $\lambda $ could actually assume values considerably higher than those tiny values and still reproduce black hole lensing signatures. The lensing observations thus provide a surprising counterexample to the intuitive expectation that all experiments ought to lead to the mimicking of black holes for the same range of values of $\lambda$.

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K. K. Nandi, R. N. Izmailov, E. R. Zhdanov, Amrita Bhattacharya. 2018-05-12. Strong field lensing by Damour-Solodukhin wormhole. https://doi.org/10.1088/1475-7516%2F2018%2F07%2F027

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