The Linear Zeeman effect in the molecular positronium Ps2 (dipositronium)

TL;DR

This paper predicts the linear Zeeman effect in certain states of molecular positronium Ps2, contrasting with the quadratic effect observed in atomic positronium, highlighting a fundamental difference in magnetic response.

Contribution

It is the first prediction of the linear Zeeman effect in specific states of molecular positronium Ps2, expanding understanding of magnetic effects in exotic molecules.

Findings

Linear Zeeman effect predicted for some Ps2 states

Opposite magnetic response compared to atomic positronium

Highlights fundamental differences in magnetic behavior

Abstract

The linear Zeeman effect in the molecular positronium Ps2 (dipositronium) is predicted for some of $S=1$, $M=\pm1$ states. This result is opposite to the case of the positronium atom; the latter has only quadratic Zeeman effect.