Ph.D. Project 2016-2019 Many-particles nonlocality

State of the art and motivations Quantum mechanics is one of the most mature and accurately verified theory in modern science. It has changed our way of looking at the nature of physical reality: Quantum particles can be found in a superposition of being in one place and another at the same time; the quantum state of particles can be teleported without the actual particle being sent; quantum computers can perform computationally hard tasks very efficiently. Among these apparently strange features lies entanglement, which Erwin Schrödinger in 1935 stated: “I would not call that [entanglement] one but rather the characteristic trait of quantum mechanics.”. Entanglement consists in very strong statistical correlations in the results of joint measurements of two or more particles. Fig. 1: A network of interacting quantum particles. Entanglement, previously regarded as a “spooky action at a distance ” by Albert Einstein and as an academic curiosity for many years, is now regarded as a resource for quantum information tasks, such as secure communications, quantum computations and precise metrology. There is yet a stronger type of correlations in quantum mechanics called non-locality. In classical mechanics we are used to think that an action implemented in a particular positio