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There's nothing necessary "outside QM" or rather microcausal QFT to understand the long-ranged correlations, which are in full accordance with the microcausality principle. Here's a very nice answer about the issue on stackexchange:
https://physics.stackexchange.com/q...ith-or-even-predicted-by-quantum-field-theory
https://physics.stackexchange.com/q...ith-or-even-predicted-by-quantum-field-theory