The paper “Witnessing Entanglement without Entanglement Witness Operators” by Luca Pezze’, Yan li, Weidong Li and Augusto Smerzi has been accepted fir publication in PNAS (Proceeding of the National Academy of Science USA). This theoretical work relates entanglement to the statistical speed measuring how quickly nearby states become distinguishable under the action of an arbitrary many-body Hamiltonian. The unveiled connection between the statistical speed and entanglement provides a unifying framework that can shed new light on quantum information science and quantum critical phenomena, and opens toward quantum-enhanced metrology in nonlinear systems. Reference: arXiv:1512.06213

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