Thermodynamic and geometric framework of a(2+1)-dimensional black hole with non-linear electrodynamics

摘要

The thermodynamic properties of a(2 + 1)-dimensional black hole with non-linear electrodynamics from the viewpoint of geometry is studied and some kinds of temperatures of the black hole have been obtained.Weinhold curvature and Ruppeiner curvature are explored as information geometry.Moreover,based on Quevedo’s theory,the Legendre invariant geometry is investigated for the black hole.We also study the relationship between the scalar curvatures of the above several metrics and the phase transitions produced from the heat capacity.