Using Majorana bilinears in quantum field theory, researchers prove the Tsirelson bound is never attained and show how spectral concentration is necessary for near-maximal Bell inequality violations.

#QuantumFieldTheory #BellInequalities #Research

Develops device-independent self-testing protocol for multi-qubit GHZ states using Bell inequality violations, achieving explicit O(√ε) noise-robust bounds without assumptions on measurement dimensions or devices.

#QuantumCertification #BellInequalities #Research

Study shows non-optimal quantum strategies can outperform optimal ones when photons are lost—counterintuitive finding that cuts threshold requirements for Bell inequality violations in quantum networks.

#QuantumNonlocality #BellInequalities #QuantumNetworks

Local classical wirings of biseparable quantum correlations can create genuine multipartite nonlocality—revealing instability of current GMNL definitions and questioning their operational validity in quantum information theory.

#QuantumNonlocality #BellInequalities #Research