- confidence
- 0.9
- detected_at
- 2026-03-01T00:53:09.557Z
- detected_by
- kg-dedupe-resolver
- reasoning
- The source entity 'quantum mechanics' and candidate 'quantum theory' are often used interchangeably to refer to the same fundamental scientific theory describing physics at the atomic and subatomic levels. Both entities are typed as 'scientific_theory' and have highly similar descriptions focusing on the behavior of matter/nature at the atomic/subatomic scale. The relationship of the photoelectric effect being a pivotal step in 'quantum theory' is consistent with the development of 'quantum mechanics'.