On the face of it, characterizing quantum dynamics in the exponentially large Hilbert space of a many-body system might require prohibitively many experiments. In fact, the locality of physical interactions means that it can be done efficiently.

中文翻译：

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量子黑匣子内部

从表面上看，表征多体系统的指数大希尔伯特空间中的量子动力学可能需要进行大量实验。实际上，物理交互的局部性意味着可以高效地完成它。