A quantum experiment with joint exogeneity violation

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• Yuhao Wang (Tsinghua University)
• Thursday 22 January 2026, 11:45-12:30
• Seminar Room 1, Newton Institute.

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CIFW01 - Foundations of causal inference

In randomized experiments, the assumption of potential outcomes is usually accompanied by the joint exogeneity assumption. Although joint exogeneity has faced criticism as a counterfactual assumption since its proposal, no evidence has yet demonstrated its violation in randomized experiments. In this paper, we reveal such a violation in a quantum experiment, thereby falsifying this assumption, at least in regimes where classical physics cannot provide a complete description. We further discuss its implications for potential outcome modelling, from both practial and philosophical perspectives.

This talk is part of the Isaac Newton Institute Seminar Series series.

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