Abstract
It is well known that quantum correlations for bipartite dichotomic measurements are those of the form \({\gamma=(\langle u_i,v_j\rangle)_{i,j=1}^n}\), where the vectors u i and v j are in the unit ball of a real Hilbert space. In this work we study the probability of the nonlocal nature of these correlations as a function of \({\alpha=\frac{m}{n}}\), where the previous vectors are sampled according to the Haar measure in the unit sphere of \({\mathbb R^m}\). In particular, we prove the existence of an \({\alpha_0 > 0}\) such that if \({\alpha\leq \alpha_0}\), \({\gamma}\) is nonlocal with probability tending to 1 as \({n\rightarrow \infty}\), while for \({\alpha > 2}\), \({\gamma}\) is local with probability tending to 1 as \({n\rightarrow \infty}\).
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Communicated by M. M. Wolf
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González-Guillén, C.E., Jiménez, C.H., Palazuelos, C. et al. Sampling Quantum Nonlocal Correlations with High Probability. Commun. Math. Phys. 344, 141–154 (2016). https://doi.org/10.1007/s00220-016-2625-8
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DOI: https://doi.org/10.1007/s00220-016-2625-8