title: Detecting direction of coupling in interacting oscillators.
abstract: We propose a method for experimental detection of directionality of weak coupling between two self-sustained oscillators from bivariate data. The technique is applicable to both noisy and chaotic systems that can be nonidentical or even structurally different. We introduce an index that quantifies the asymmetry in coupling.
authors.affiliation: Department of Physics, University of Potsdam, Am Neuen Palais, PF 601553, D-14415, Potsdam, Germany.
authors.forename: M G
authors.initials: MG
authors.lastname: Rosenblum
authors.forename: A S
authors.initials: AS
authors.lastname: Pikovsky