Interpolations Among NAHE-based Supersymmetric and Nonsupersymmetric String Vacua

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.

15 pages. Standard LaTex. References added

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• Conformal Aspects of Spinor-Vector Duality
• Non-Tachyonic Semi-Realistic Non-Supersymmetric Heterotic String Vacua
• On exponential suppression of the cosmological constant in non-SUSY strings at two loops and beyond
• Stability, enhanced gauge symmetry and suppressed cosmological constant in 9D heterotic interpolating models
• Spinor-Vector Duality in Heterotic String Orbifolds
• Generalised universality of gauge thresholds in heterotic vacua with and without supersymmetry
• Classification of Non-Supersymmetric Pati-Salam Heterotic String Models
• Towards the Classification of Tachyon-Free Models From Tachyonic Ten-Dimensional Heterotic String Vacua
• On interpolations from SUSY to non-SUSY strings and their properties
• Supersymmetry Breaking and Stability in String Vacua: brane dynamics, bubbles and the swampland
• Stable Three Generation Standard--like Model From a Tachyonic Ten Dimensional Heterotic--String Vacuum
• Marginal deformations of heterotic interpolating models and exponential suppression of the cosmological constant
• String Phenomenology From a Worldsheet Perspective
• Super No-Scale Models with Pati-Salam Gauge Group
• Target Space Duality of Non-Supersymmetric String Theory
• Gravitational Threshold Corrections in Non-Supersymmetric Heterotic Strings
• Interpolation and Exponentially Suppressed Cosmological Constant in Non-Supersymmetric Heterotic Strings with General ${\mathbb{Z}}_2$ Twists
• Note on a NAHE Variation
• Vacuum Energy in Non-Supersymmetric Quasi-Realistic Heterotic-String Vacua with Fixed Moduli
• MSHSM - Minimal Standard Heterotic String Models
• Towards Classification of $\mathcal{N}=1$ and $\mathcal{N}=0$ Flipped $SU(5)$ Asymmetric ${\mathbb{Z}}_2\times {\mathbb{Z}}_2$ Heterotic String Orbifolds
• Free Fermionic Constructions of Heterotic Strings
• Calabi-Yau compactifications of non-supersymmetric heterotic string theory
• On the Equivalence of String Vacua
• Setting the Stage for a Non-Supersymmetric UV-Complete String Phenomenology
• Gauge Symmetry Enhancement by Wilson Lines in Twisted Compactification