3 papers
cs.SI2026
On the Limits of PAC Learning of Networks from Opinion Dynamics
Dmitry Chistikov, Luisa Estrada, Mike Paterson +1
Agents in social networks with threshold-based dynamics change opinions when influenced by sufficiently many peers. Existing literature typically assumes that the network structure…
quant-ph2026
The Grasshopper Problem on the Sphere
David Llamas, Dmitry Chistikov, Adrian Kent +2
The spherical grasshopper problem is a geometric optimization problem that arises in the context of Bell inequalities and can be interpreted as identifying the best local hidden va…
quant-ph2026
Optimal Local Simulations of a Quantum Singlet
David Llamas, Dmitry Chistikov, Adrian Kent +2
Bell's seminal work showed that no local hidden variable (LHV) model can fully reproduce the quantum correlations of a two-qubit singlet state. His argument and later developments…