Abstract
We derive the mass term of the Bardeen metric in the presence of a noncommutative geometry induced minimal length. In this setup, the proposal of a stable black hole remnant as a candidate to store information is confirmed. We consider the possibility of having an extremal configuration with one degenerate event horizon and compare different sizes of black hole remnants. As a result, once the magnetic charge \(g\) of the noncommutative Bardeen solution becomes larger, both the minimal nonzero mass \(M_{0}\) and the minimal nonzero horizon radius \(r_{0}\) get larger. This means, subsequently, under the condition of an adequate amount of \(g\), the three parameters \(g\), \(M_{0}\), and \(r_{0}\) are in a connection with each other linearly. According to our results, a noncommutative Bardeen black hole is colder than the noncommutative Schwarzschild black hole and its remnant is bigger, so the minimum required energy for the formation of such a black hole at particle colliders will be larger. We also find a closely similar result for the Hayward solution.
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Notes
Note that, a micro BH can be produced at the LHC just under the condition of \(E_{cm} > M_{0}\), where \(E_{cm}\) is the parton-parton center-of-mass energy which is proportional to the TeV energy scale.
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Acknowledgements
Financial support by Lahijan Branch, Islamic Azad University Grant No. 17.20.5.3517 is gratefully acknowledged. The authors thank to C. Bambi for valuable suggestions.
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Mehdipour, S.H., Ahmadi, M.H. A comparison of remnants in noncommutative Bardeen black holes. Astrophys Space Sci 361, 314 (2016). https://doi.org/10.1007/s10509-016-2904-z
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DOI: https://doi.org/10.1007/s10509-016-2904-z