# Physics:Hayward metric

The Hayward metric is the simplest description of a black hole which is non-singular. The metric was written down by Sean Hayward as the minimal model which is regular, static, spherically symmetric and asymptotically flat.[1] The metric is not derived from any particular alternative theory of gravity, but provides a framework to test the formation and evaporation of non-singular black holes both within general relativity and beyond. Hayward first published his metric in 2005 and numerous papers have studied it since.[2][3][4][5]

## References

1. Hayward, Sean A. (26 January 2006). "Formation and evaporation of non-singular black holes". Physical Review Letters 96 (3): 031103. doi:10.1103/PhysRevLett.96.031103. PMID 16486679. Bibcode2006PhRvL..96c1103H.
2. De Lorenzo, Tommaso; Pacilio, Costantino; Rovelli, Carlo; Speziale, Simone (1 April 2015). "On the Effective Metric of a Planck Star". General Relativity and Gravitation 47 (4): 41. doi:10.1007/s10714-015-1882-8. Bibcode2015GReGr..47...41D.
3. Chiba, Takeshi; Kimura, Masashi (1 April 2017). "A Note on Geodesics in Hayward Metric". Progress of Theoretical and Experimental Physics 2017 (4). doi:10.1093/ptep/ptx037.
4. Contreras, E.; Bargueño, P. (20 October 2018). "Scale--dependent Hayward black hole and the generalized uncertainty principle". Modern Physics Letters A 33 (32): 1850184–1850228. doi:10.1142/S0217732318501845. Bibcode2018MPLA...3350184C.
5. Frolov, Valeri P. (28 November 2016). "Notes on non-singular models of black holes". Physical Review D 94 (10): 104056. doi:10.1103/PhysRevD.94.104056. Bibcode2016PhRvD..94j4056F.