Group-theoretical origin of CP violation

TL;DR

This paper reviews how CP violation can originate from the mathematical properties of finite groups in string theory models, where certain groups inherently lack a CP transformation.

Contribution

It highlights the group-theoretical basis for CP violation within string compactifications that produce the Standard Model spectrum.

Findings

Finite groups without a CP transformation can cause CP violation.

Explicit string compactifications demonstrate this group-theoretical origin.

Provides a conceptual framework linking group theory and CP violation in string models.

Abstract

This is a short review of the proposal that CP violation may be due to the fact that certain finite groups do not admit a physical CP transformation. This origin of CP violation is realized in explicit string compactifications exhibiting the Standard Model spectrum.