Hardy's Paradox for Yu-Oh Set Constructed by Logically Contextual Quantum States

TL;DR

This paper constructs Hardy's paradoxes for the Yu-Oh set, a minimal state-independent contextual quantum system, demonstrating its contextuality through 12 paradoxes with an 11.1% success probability and proposing experimental observables.

Contribution

It systematically enumerates logically contextual pure states in the Yu-Oh set and constructs Hardy's paradoxes, advancing understanding of quantum contextuality in minimal systems.

Findings

Identified all logically contextual pure states in Yu-Oh set

Constructed 12 Hardy's paradoxes with 11.1% success probability

Proposed observables for experimental verification

Abstract

Quantum contextuality is a fundamental nonclassical property of quantum systems, regarded as a key resource that demonstrates the computational and informational advantages of quantum over classical systems. Our present work aims to construct Hardy's paradoxes, a set of possibilistic conditions witnessing contextuality, for Yu-Oh set, which is the state-independent contextual quantum system with the least number of vectors. To achieve the aim, we systematically enumerate all logically contextual pure states on Yu-Oh set, and theoretically prove that no mixed states in this scenario are logically contextual. Based on the identified logically contextual quantum states, we construct 12 Hardy's paradoxes with identical success probability SP=11.1%. Furthermore, we present corresponding observables to experimentally witness these Hardy's paradoxes.