Quantum entanglement

  title={Quantum entanglement},
  author={Ryszard Horodecki and Paweł Horodecki and Michal Horodecki and Karol Horodecki},
Chaotic systems are highly sensitive to a small perturbation, be they biological, chemical, classical, ecological, political, or quantum. Taking this as the underlying principle, we construct an operational notion for quantum chaos. Namely, we demand that the whole future state of a large, isolated quantum system is highly sensitive to past multitime operations on a small subpart of that system. This immediately leads to a direct link between quantum chaos and volume-law spatiotemporal… 

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