标题： 基于精细调整的Steering不等式的任何三个量子比特广义Greenberger-Horne-Zeilinger态的实验提案认证 显示英文标题

标题： An experimental proposal certification for any three-qubit generalized Greenberger-Horne-Zeilinger states based on the fine-grained steering inequality

摘要： 多方量子Steering是量子信息理论和量子力学中的一个重要概念，通常与量子纠缠和量子非定域性相关。它使得对大型量子系统的精确操控成为可能，这对于大规模量子计算、模拟和量子通信至关重要。最近，基于精细的Steering不等式，证明了针对任何三量子比特广义Greenberger-Horne-Zeilinger (GGHZ)态的量子Steering认证 [Quantum Studies: Mathematics and Foundations, 2022, 9(2): 175-198]。在这里，我们提出了一种实验方案，在光子系统中制备GGHZ态。每个参与方的测量可观测量可以通过不同的偏振光学元件实现。通过选择波片的角度，我们的实验方案可以观察到任何三量子比特GGHZ态的最大量子违反。我们的方案可以轻松扩展到高维量子比特和多光子GHZ态，这为研究复杂的多方量子协议提供了一种方法。 显示英文摘要

摘要： Multi-party quantum steering is an important concept in quantum information theory and quantum mechanics, typically related to quantum entanglement and quantum nonlocality. It enables precise manipulation of large quantum systems, which is essential for large-scale quantum computing, simulations, and quantum communication. Recently, a quantum steering certification for any three-qubit generalized Greenberger-Horne-Zeilinger (GGHZ) states based on the fine-grained steering inequality was proved [Quantum Studies: Mathematics and Foundations, 2022, 9(2): 175-198]. Here we provide an experimental proposal to prepare the GGHZ states in photon system. The measurement observalbes in each party can be realized by different polarization optical elements. By choosing the angles of the waveplates, our experiment proposal can observe the maximum quantum violation for any three-qubit GGHZ states. Our proposal can be easily extended to high-dimensional qubits and multi-photon GHZ states, which provides a method to study the complex multi-party quantum protocols.