52 citations · 121 across the 6 of their papers we have counts for
6 papers
Niemeier Lattices in the Free Fermionic Heterotic-String Formulation
Panos Athanasopoulos, Alon E. Faraggi
The spinor-vector duality was discovered in free fermionic constructions of the heterotic-string in four dimensions. It played a key role in the construction of heterotic-string mo…
Heterotic free fermionic and symmetric toroidal orbifold models
P. Athanasopoulos, A. E. Faraggi, S. Groot Nibbelink +1
Free fermionic models and symmetric heterotic toroidal orbifolds both constitute exact backgrounds that can be used effectively for phenomenological explorations within string theo…
Non-Tachyonic Semi-Realistic Non-Supersymmetric Heterotic String Vacua
Johar M. Ashfaque, Panos Athanasopoulos, Alon E. Faraggi +1
The heterotic--string models in the free fermionic formulation gave rise to some of the most realistic string models to date, which possess N=1 spacetime supersymmetry. Lack of evi…
Discrete symmetries in the heterotic-string landscape
Panos Athanasopoulos
We describe a new type of discrete symmetry that relates heterotic-string models. It is based on the spectral flow operator which normally acts within a general N=(2,2) model and w…
Spectral flow as a map between N=(2,0)-models
P. Athanasopoulos, A. E. Faraggi, D. Gepner
The space of models is of particular interest among all heterotic-string models because it includes the models with the minimal unification structure, which is wel…
Light Z' in Heterotic String Standard-like Models
P. Athanasopoulos, A. E. Faraggi, V. M. Mehta
The discovery of the Higgs boson at the LHC supports the hypothesis that the Standard Model provides an effective parameterisation of all subatomic experimental data up to the Plan…