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quant-ph2025
Operational Coherent Measurements with Steering and Randomness
Chellasamy Jebarathinam, Huan-Yu Ku, Hsi-Sheng Goan
Measurement incompatibility underpins randomness generation in nonlocal phenomena. However, at its root, a more fundamental quantum feature is noncommuting (or coherent) measuremen…
quant-ph2025
Popescu-Rohrlich box fraction of nonobjective information and distinguishing quantum theory
Chellasamy Jebarathinam
It is demonstrated that identifying information-theoretic limitations of quantum Bell nonlocality alone cannot completely distinguish quantum theory from generalized nonsignaling t…
quant-ph2025
Secure key distribution based on Popescu-Rohrlich box fraction of dimensionally restricted nonlocality
Chellasamy Jebarathinam
For the bipartite Bell scenario with two inputs and two outputs, a nonlinear witness of dimensionally restricted nonlocality is introduced. Popescu-Rohrlich (PR) box fraction of di…