title: Strong correlations between incoherent vortices.
abstract: We establish a correlation rule of which the value of the topological charge obtained in intensity correlation between two coherence vortices is such that this value is bounded by the topological charge of each coherence vortex. The original phase information is scrambled in each speckle pattern and unveiled using numerical intensity correlation. According to this rule, it is also possible to obtain a coherence vortex stable, an integer vortex, even when each incoherent vortex beam is instable, non-integer vortex.
authors.affiliation: Optics and Materials Group - OPTMA, Universidade Federal de Alagoas, Caixa Postal 2051, Maceió, AL 57061-970, Brazil.
authors.forename: A J
authors.initials: AJ
authors.lastname: Jesus-Silva
authors.forename: J M
authors.initials: JM
authors.lastname: Hickmann
authors.forename: E J S
authors.initials: EJ
authors.lastname: Fonseca
mesh_terms: D003198:Computer Simulation; D004574:Electromagnetic Fields; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012212:Rheology / Q000379:methods*; D055672:Static Electricity