Blind steering in no-signalling theories

TL;DR

This paper explores the concept of steering in no-signalling theories, introduces the novel idea of 'blind steering' as a fundamental form of steering, and analyzes its implications beyond quantum mechanics.

Contribution

It deconstructs quantum steering into fundamental aspects and introduces 'blind steering' as a basic, theory-independent form of steering.

Findings

Quantum steering involves multiple aspects that need separation.

Introduction of 'blind steering' as the most basic form of steering.

Analysis of steering phenomena in no-signalling theories.

Abstract

Steering is a physical phenomenon which is not restricted to quantum theory, it is also present in more general, no-signalling theories. Here, we study steering from the point of view of no-signalling theories. First, we show that quantum steering involves a collection of different aspects, which need to be separated when considering steering in no-signalling theories. By deconstructing quantum steering, we learn more about the nature of the steering phenomenon itself. Second, we introduce a new concept, that we call "blind steering", which can be seen as the most basic form of steering, present both in quantum mechanics and no-signalling theories.