The simulation is discussed in detail, including the violation of the Bellinequality and the correlation properties of optical pulses' group delays.
为了与量子纠缠类比，进一步研究了这种纠缠态对贝尔不等式的破坏以及波导群时延的相关性质。
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John Bell, however, later demonstrated entanglement in real particles by experimental refutation of the BellInequality (which formalized the EPR thought experiment).
The Bellinequality violation and the entanglement does not satisfy the monotonic relation, a large Bellinequality violation may correspond to a small amount of entanglement.