Insights from the History for Teaching Antimatter

TL;DR

This paper explores the historical development of antimatter concepts, emphasizing contributions from Dirac, Pauli, and Majorana, to improve teaching methods and understanding of antimatter in physics.

Contribution

It highlights overlooked historical insights and contributions, especially Majorana's, to enhance the teaching and conceptual clarity of antimatter.

Findings

Majorana's early formalization of quantum mechanics

Historical context enriches antimatter teaching

Wave mechanics perspective has limitations

Abstract

The concept of antimatter is extremely important, but not always discussed as it deserves, balancing ideas and formalism. In this note, we gather some insights to present it effectively, following certain steps taken in the history of knowledge; although rarely remembered, they can serve to enrich standard teaching materials. In addition to the well-known contributions of Dirac, which we place in their original context, the contributions of Pauli and especially Majorana stand out, the latter being the first to reach the modern formalism of canonical quantization. The importance of the point of view of wave mechanics emerges, which still shows its limitations, requiring some adjustments to constitute an acceptable interpretation.