Berwald geometries are Finsler close to (pseudo)-Riemannian geometries. We establish a simple first order partial differential equation as necessary and sufficient condition, which given Lagrangian has satisfy be of type. Applied $(\alpha,\beta)$-Finsler spaces, respectively $(A,B)$-Finsler spacetimes, this reduces condition for the Levi-Civita covariant derivative defining $1$-form. illustrate...

An unknown quantum state can be teleported by using measurements and the maximally entangled Einstein-Podolsky-Rosen (EPR) pair. It is well known that usual nonclassical teleportation cannot simulated seminal classical measure-prepare strategy demonstrated with all states. Herein, we propose a benchmark which reveals not such teleportations are truly mechanical. Rather, there exists more robust...