4 papers
Pauli Flat Quantum States Mimicking Maximal Magic
Paweł Cieśliński
Quantum magic is a necessary resource for fault-tolerant quantum computing, capturing the departure of quantum states from the classically simulable stabiliser set. Motivated by it…
Experimental certification of multipartite Bell correlations using only few-body symmetric correlations
Jiacheng Sun, Mengyao Hu, Paweł Cieśliński +9
Certifying Bell correlations in increasingly larger multipartite quantum systems is challenging because conventional Bell inequalities rely on many-body correlations, which become…
Multipartite Bell-GHZ nonclassicality from interwoven frustrated down-conversion
Marek Żukowski, Paweł Cieśliński, Marcin Markiewicz +1
We present a theory of an interference process that starts with N coherently pumped two-mode parametric down-conversion (PDC) sources, whose output modes are directed to N observer…
The Richness of Bell Nonlocality: Generalized Bell Polygamy and Hyper-Polygamy
Gerard Anglès Munné, Paweł Cieśliński, Jan Wójcik +1
Non-classical quantum correlations underpin both the foundations of quantum mechanics and modern quantum technologies. Among them, Bell nonlocality is a central example. For bipart…