4 problems

Let $K_A$ and $K_B$ be state spaces, let $G$ be a game, and let $\beta^*(G)$ and $\gamma^*(G)$ denote the corresponding optimization values over assemblages and bipartite states wi…

Let $\mathcal{C}$ be a model of the quantum composite system, and let the SES denote the standard entanglement structure. Two models are equivalent when they represent the same com…

Let $\Omega_A$ be an egg-like two-dimensional state space with tangent lines $E_1$ and $E_2$ at boundary points $p_1$ and $p_2$, where $E_1$ and $E_2$ are parallel. Let $l$ be the…

A generalized probabilistic theory has states, measurements, and pure states, where a pure state is a state that cannot be written as a nontrivial convex combination of distinct st…