When readers comprehend a text, they can have multiple simultaneous interpretations. Literary theories and art studies have indicated that multiple and indeterminate interpretations allow us to create novel understanding and provide us with aesthetic experiences. However, in the cognitive science field, these multiple and indeterminate interpretations have not been represented and modeled. This article proposes a way of modeling the states of multiple and indeterminate interpretations as a time series based on quantum probability theory and discusses the prospect of our approach, focusing on comprehension and aesthetic research. First, we discuss the worth of indeterminate and multiple interpretations for text comprehension and aesthetic experiences. Then, after reviewing the previous comprehension studies, we propose a model of interpretation state, including indeterminacy and multiplicity, as a superposition state based on quantum probability theory and physics. Further, we share the basis of quantum probability theory and the recent studies on quantum cognition for this proposal. Finally, we discuss the prospects of comprehension studies using our approach.
