Ettore Majorana anticipated Feynman's path-integral theory

A new analysis of the Italian physicist Ettore Majorana suggests he anticipated the physical content of Richard Feynman's path-integral formulation of quantum theory.

The research examines the philosophical and conceptual perspectives of Majorana, a key figure in 20th-century Italian science. While his work on nuclear physics and quantum mechanics remains influential, his personal reflections on the nature of the quantum state were previously under-documented.

The author explores the standard view that Majorana predicted elements of Feynman's work, while also proposing an alternative interpretation of his beliefs regarding the wave function. The findings also address Majorana's views on the conceptual revolutions of quantum mechanics. He believed that the objectivity and determinism found in classical mechanics could not be extended to the quantum realm. These reflections had implications for his interest in the social sciences, which he studied extensively before his disappearance.

The analysis aims to bridge the gap in understanding how Majorana viewed the relationship between physics and broader human disciplines.