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quant-ph2026
Qudit Clauser-Horne-Shimony-Holt Inequality and Nonlocality from Wigner Negativity
Uta Isabella Meyer, Ivan Å upiÄ, Damian Markham +1
Nonlocality is an essential concept that distinguishes quantum from classical models and has been extensively studied in systems of qubits. For higher-dimensional systems, certain…
quant-ph2025
Self-Testing Graph States Permitting Bounded Classical Communication
Uta Isabella Meyer, Ivan Å upiÄ, Frédéric Grosshans +1
Self-testing identifies quantum states and correlations that exhibit nonlocality, distinguishing them, up to local transformations, from other quantum states. Due to their strong n…
quant-ph2024
Network-Device-Independent Certification of Causal Nonseparability
Hippolyte Dourdent, Alastair A. Abbott, Ivan Å upiÄ +1
Causal nonseparability is the property underlying quantum processes incompatible with a definite causal order. So far it has remained a central open question as to whether any proc…