Detecting nonlocality in symmetric many-body systems

Detecting nonlocality in symmetric many-body systems

Seminar author:Rubén Quesada

Event date and time:02/17/2016 02:30:pm

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Intensive studies of entanglement properties have proven essential for our understanding of quantum many-body systems. In contrast, much less is known about the role of quantum nonlocality in these systems because the available multipartite Bell inequalities involve correlations among many particles, which are difficult to access experimentally. We will review multipartite Bell inequalities that involve only two-body correlations and show how they reveal the nonlocality in symmetric many-body systems relevant for nuclear and atomic physics. These inequalities are violated by any number of parties and can be tested by measuring total spin components, opening the way to the experimental detection of many-body nonlocality, for instance with atomic ensembles.