4 papers
Sheaf-Theoretic Preparation Contextuality
Tom Williams, Mina Doosti, Farid Shahandeh
We introduce a preparation-dual notion of contextuality, formulated as an obstruction to stochastic extension. In parallel with the sheaf-theoretic formulation of measurement conte…
Contextuality of all optimal quantum cloning
Mina Doosti, Theodoros Yianni, Farid Shahandeh
Quantum contextuality is a key nonclassical feature underlying advantages in quantum computation and communication. We introduce a new method to study contextuality in quantum info…
A Unified Linear Algebraic Framework for Physical Models and Generalized Contextuality
Farid Shahandeh, Theodoros Yianni, Mina Doosti
We develop a bottom-up, statistics-first framework in which the full probabilistic content of an operational theory is encoded in its matrix of conditional outcome probabilities of…
Variational quantum cloning machine on an integrated photonic interferometer
Francesco Hoch, Giovanni Rodari, Eugenio Caruccio +13
A seminal task in quantum information theory is to realize a device able to produce copies of a generic input state with the highest possible output fidelity, thus realizing an \te…