Testing quantum mechanics at colliders

In the last few years the interest on tests of quantum mechanics at colliders has surged. In the first part of the seminar I will discuss the motivation to look beyond quantum mecanics at the energy frontier, compared to traditional searches for physics beyond the SM. In the second part I will discuss a (thought) experiment involving quantum       entanglement and decay - a feature not present in traditional entanglement experiments. The interpretation of this experiment suggests that - as already considered by several authors - the Copenhagen interpretation of measurement is only a mathematical tool for calculations.