A comparison of remnants in noncommutative Bardeen black holes

作者：Mehdipour S Hamid^*; Ahmadi M H

来源：Astrophysics and Space Science, 2016, 361(9): 314.

DOI：10.1007/s10509-016-2904-z

• Regular black hole
• Hawking temperature
• Noncommutative geometry
• Black hole remnant

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.

• 出版日期2016-9