4 papers
The simplest Kochen-Specker set
Adán Cabello
Kochen-Specker (KS) sets are fundamental in physics. Every time nature produces bipartite correlations attaining the nonsignaling limit, or two parties always win a nonlocal game i…
Memory cost of quantum contextuality with Pauli observables
Stefan Trandafir, Colm Kelleher, Adán Cabello
Classically simulating the quantum contextual correlations produced by sequences of ideal measurements of compatible observables requires the measured system to have an internal me…
Reply to Pavičić's 'Comment on "Optimal conversion of Kochen-Specker sets into bipartite perfect quantum strategies"' (arXiv:2502.13787)
Stefan Trandafir, Adán Cabello
According to Paviči{ć}, Kochen and Specker's 117-observable set is not a ``Kochen-Specker set''. By the same reason, in arXiv:2502.13787, Paviči{ć} claims that 10 statements in our…
Two fundamental solutions to the rigid Kochen-Specker set problem and the solution to the minimal Kochen-Specker set problem under one assumption
Stefan Trandafir, Adán Cabello
Recent results show that Kochen-Specker (KS) sets of observables are fundamental to quantum information, computation, and foundations beyond previous expectations. Among KS sets, t…