Interpolations Among NAHE-based Supersymmetric and Nonsupersymmetric String Vacua

TL;DR

This paper explores the bosonic formalism of free fermionic heterotic-string models, revealing their symmetry breaking patterns and connections to non-supersymmetric vacua through interpolations, enhancing understanding of string unification phenomenology.

Contribution

It provides a bosonic equivalent description of free fermion models and demonstrates their interpolation to non-supersymmetric vacua, offering new insights into string model connections.

Findings

Bosonic formalism of free fermionic models elucidated.

Connection between supersymmetric and non-supersymmetric vacua established.

Symmetry breaking patterns from E8xE8 to SO(16)xSO(16) analyzed.

Abstract

The quasi-realistic free fermionic heterotic-string models provide some of the most detailed examples to explore the phenomenology of string unification. While providing a powerful tool to generate models and their spectra, understanding the realisation of the free fermion models in a bosonic formalism will provide important insight into their basic properties away from the free fermion point. In this paper we elucidate bosonic equivalent of the basic symmetry breaking pattern in the free fermion models from E8XE8 to SO(16)XSO(16) and exhibit the connection of the free fermion models with corresponding non--supersymmetric vacua by interpolations.