内部取消路径与因果结构模型的忠实假设

Internal Cancelling Paths and Faithfulness Assumption of Causal Structure Model

在量子语境中,量子相干与因果结构模型是不相容的,任何量子相干的解释都会违反因果结构模型的忠实假设。忠实假设对于因果结构模型的重要性是不言而喻的,为了维持因果模型框架,纳格尔提出用内部消除路径来解决这一问题,从而保留因果解释的核心思想,但是,纳格尔回避了违反忠实原则最重要的问题之一:这种违反行为最终会损害我们基于统计独立性对因果独立性作出适当推断的能力。

In quantum context,quantum correlations are incompatible with causal structure model,and any explanation of quantum correlations will violate the faithfulness assumption of causal structure model.The faithfulness assumption is evidently important for causal structure model.In order to maintain the framework of causal model,Näger proposed to use internal cancelling paths to stably violate faithfulness,so as to retain the core idea of causal interpretation.However,this idea avoids the following possibility,i.e.,if we violate faithfulness principle,it will eventually damage our ability to infer causal independence based on statistical independence ability.