Regularized Maxwell electrodynamics is a recently discovered theory of nonlinear electrodynamics, with a minimally regularized field strength of a point charge, that is very close to the Maxwell theory in many aspects. In this paper we investigate some of the optical properties of its black holes. Namely, we study geodesics, gravitational redshift, black hole shadow, as well as investigate the relationship between the behavior of (null geodesic) Lyapunov exponents and the existence of thermodynamic critical points in both canonical and grand-canonical ensembles.

中文翻译：

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正则化麦克斯韦理论中黑洞的光学性质

正则化麦克斯韦电动力学是最近发现的非线性电动力学理论，具有点电荷的最小正则化场强，在许多方面与麦克斯韦理论非常接近。在本文中，我们研究了黑洞的一些光学特性。也就是说，我们研究测地线、引力红移、黑洞阴影，并研究（零测地线）李雅普诺夫指数的行为与正则系综和大正则系综中热力学临界点的存在之间的关系。