TY - JOUR AB - We recently showed that multipartite correlations between outcomes of random observables detect quantum entanglement in all pure and some mixed states. In this followup article we further develop this approach, derive a maximal amount of such correlations, and show that they are not monotonous under local operations and classical communication. Nevertheless, we demonstrate their usefulness in entanglement detection with a single random observable per party. Finally we study convex-roof extension of the correlations and provide a closed-form necessary and sufficient condition for entanglement in rank-2 mixed states and a witness in general. AU - Tran, M. C. AU - Dakic, B. AU - Laskowski, W. AU - Paterek, T. DA - 2016/06/03/ DO - 10.1103/PhysRevA.94.042302 IS - 4 JF - Physical Review A PY - 2016 SE - 2016/06/03/ SP - 042302 TI - Correlations between outcomes of random measurements UR - https://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.042302 VL - 94 ER -