8 papers
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…
Composable simultaneous purification: when all communication scenarios reduce to spatial correlations
Matilde Baroni, Dominik Leichtle, Ivan Å upiÄ +2
Bell non-locality is a powerful framework to distinguish classical, quantum and post-quantum resources, which relies on non-communicating players. Under which restriction can we ha…
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…
Formalizing contextuality in sequential scenarios
Kim Vallée, Damian Markham
This paper provides a framework for characterizing sequential scenarios, allowing for the identification of contextuality given empirical data, and then provides precise operationa…
Quantum bounds for compiled XOR games and -outcome CHSH games
Matilde Baroni, Quoc-Huy Vu, Boris Bourdoncle +3
Nonlocal games play a crucial role in quantum information theory and have numerous applications in certification and cryptographic protocols. Kalai et al. (STOC 2023) introduced a…
Robustly self-testing all maximally entangled states in every finite dimension
Uta Isabella Meyer, Ivan Å upiÄ, Frédéric Grosshans +1
We establish a device-independent, noise-tolerant certification of maximally entangled states in every finite dimension . The core ingredient is a -input, -outcome Bell ex…