Entangling two Dicke states in a periodic modulated quantum system

W Zhang, R Wu, C Sun, C Wu, G Wang - Physical Review A, 2024 - APS
We propose a theoretical approach for entangling two Dicke states in a periodic modulated
quantum system. By considering two qubit ensembles that are nonuniformly coupled to a …

Violation of Bell Inequality by Four‐Photon Greenberger‐Horne‐Zeilinger State with a Phase from a Warm Atomic Ensemble

J Park, J Ryu, H Kim, HS Moon - Advanced Quantum …, 2023 - Wiley Online Library
Abstract A Greenberger–Horne–Zeilinger (GHZ) entangled state with a phase is crucial for
realizing desired multipartite quantum states for practical applications. Here, it is reported …

Precise detection of multipartite entanglement in four-qubit Greenberger–Horne–Zeilinger diagonal states

XY Chen, LZ Jiang, ZA Xu - Frontiers of Physics, 2018 - Springer
We propose a method of constructing the separability criteria for multipartite quantum states
on the basis of entanglement witnesses. The entanglement witnesses are obtained by …

Mermin inequalities for perfect correlations in many-qutrit systems

J Lawrence - Physical Review A, 2017 - APS
The existence of Greenberger-Horne-Zeilinger (GHZ) contradictions in many-qutrit systems
was a long-standing theoretical question until its (affirmative) resolution in 2013. To enable …

A hierarchy of entanglement criteria for four-qubit symmetric Greenberger–Horne–Zeilinger diagonal states

X Chen, L Jiang - Quantum Information Processing, 2019 - Springer
With a two-step method of optimizing entanglement witness, we propose a set of necessary
and sufficient entanglement criteria for four-qubit symmetric Greenberger–Horne–Zeilinger …

Mathematically proving Bell nonlocality motivated by the GHZ argument

Q Zhang, Z Guo, H Cao - IEEE Access, 2021 - ieeexplore.ieee.org
Bell nonlocality of quantum states is an important resource in quantum information and then
has various applications. It is usually detected by the violation of some Bell's inequalities …

Deterministic all-versus-nothing proofs of Bell nonlocality based on non-stabilizer states

W Tang - New Journal of Physics, 2023 - iopscience.iop.org
The all-versus-nothing proof of Bell nonlocality is a prominent demonstration of Bell's
theorem without inequalities. There are two kinds of such proofs: the deterministic all-versus …

“All-Versus-Nothing” Contextuality in Graph States

ZH Liu - Exploring Quantum Contextuality with Photons, 2023 - Springer
In this chapter I introduce a unified construction of Greenberger–Horne–Zeilinger (GHZ)-type
paradoxes for graph states, providing insights into the contradictions between classical …

Greenberger-Horne-Zeilinger test for multi-dimension and arbitrary time nodes entangled histories

J Dong, YM Chen, D Xu, ZQ Yin - arxiv preprint arxiv:1610.04296, 2016 - arxiv.org
Based on the framework of consistent history theory, the quantum entangled history was
proposed in 2015 and experimentally verified through temporal Greenberger-Horne …

Device-independent verification of quantum coherence without quantum control

YH Yang, X Yang, XZ Zheng, MX Luo - Cell Reports Physical Science, 2023 - cell.com
Quantum coherence plays a crucial role in manipulating and controlling quantum systems,
leading to breakthroughs in various fields such as quantum information, quantum sensing …