Testing the equivalence principle via the shadow of black holes
Sheng-Feng Yan, Chunlong Li, Lingqin Xue, Xin Ren, Yi-Fu Cai, Damien A. Easson, Ye-Fei Yuan, Hongsheng Zhao
Abstract
This paper proposes a method to test Einstein's equivalence principle using the profile of black hole shadows. The shadow in edge-on view is found to have different appearances at different wavelengths of the observed light.
Topics & Concepts
Equivalence (formal languages)Shadow (psychology)PhysicsMathematicsEquivalence principle (geometric)Calculus (dental)Theoretical physicsMathematical analysisEquivalence relationBlack hole (networking)WavelengthOpticsGeometryNoncommutative and Quantum Gravity TheoriesBlack Holes and Theoretical PhysicsRelativity and Gravitational Theory