title: Steering Maps and Their Application to Dimension-Bounded Steering.
abstract: The existence of quantum correlations that allow one party to steer the quantum state of another party is a counterintuitive quantum effect that was described at the beginning of the past century. Steering occurs if entanglement can be proven even though the description of the measurements on one party is not known, while the other side is characterized. We introduce the concept of steering maps, which allow us to unlock sophisticated techniques that were developed in regular entanglement detection and to use them for certifying steerability. As an application, we show that this allows us to go beyond even the canonical steering scenario; it enables a generalized dimension-bounded steering where one only assumes the Hilbert space dimension on the characterized side, with no description of the measurements. Surprisingly, this does not weaken the detection strength of very symmetric scenarios that have recently been carried out in experiments.
authors.affiliation: Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Walter-Flex-Strasse 3, 57068 Siegen, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Moroder
authors.affiliation: Institute of Atomic and Subatomic Physics, TU Wien, Stadionallee 2, 1020 Wien, Austria.|Institute for Theoretical Physics, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria.|Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Technikerstrasse 21a, 6020 Innsbruck, Austria.
authors.forename: Oleg
authors.initials: O
authors.lastname: Gittsovich
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.|ICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain.|Group of Applied Physics, University of Geneva, 1211 Geneva 4, Switzerland.
authors.forename: Marcus
authors.initials: M
authors.lastname: Huber
authors.affiliation: Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Walter-Flex-Strasse 3, 57068 Siegen, Germany.
authors.forename: Roope
authors.initials: R
authors.lastname: Uola
authors.affiliation: Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Walter-Flex-Strasse 3, 57068 Siegen, Germany.
authors.forename: Otfried
authors.initials: O
authors.lastname: Gühne