output
19912024
most citedPotential Sensitivity of Gamma-Ray Burster Observations to Wave Dispersion in Vacuo

1.4k citations

Showing 2002Show all

10 papers · 1 filter

hep-th2002★ 4 cited

Universal Calabi-Yau Algebra: Classification and Enumeration of Fibrations

F. Anselmo, J. Ellis, D. V. Nanopoulos +1

We apply a universal normal Calabi-Yau algebra to the construction and classification of compact complex -dimensional spaces with SU(n) holonomy and their fibrations. This algeb…

hep-ph2002★ 19 cited

F-enomenology

Dimitri V. Nanopoulos

The advantages of Flipped SU(5) over conventional Supersymmetric GUTs, like SU(5), are discussed. Recent values of the strong coupling at M_Z, sin-squared theta-Weinberg, g-2 of th…

hep-ph2002

Parameter Space Investigations of Free Fermionic Heterotic Models

Gerald Cleaver

I survey the parameter space of NAHE-based free fermionic heterotic string models. First, I discuss flat directions of the low energy effective field theories and show that D-flat…

astro-ph2002★ 174 cited

Quantum-Gravity Analysis of Gamma-Ray Bursts using Wavelets

J. Ellis, N. E. Mavromatos, D. V. Nanopoulos +1

In some models of quantum gravity, space-time is thought to have a foamy structure with non-trivial optical properties. We probe the possibility that photons propagating in vacuum…

hep-ph2002★ 19 cited

On the Possibility of Optical Unification in Heterotic Strings

Gerald Cleaver, Virendra Desai, Heather Hanson +3

Recently J. Giedt discussed a mechanism, entitled optical unification, whereby string scale unification is facilitated via exotic matter with intermediate scale mass. This mechanis…

gr-qc2002★ 8 cited

Impact of Low-Energy Constraints on Lorentz Violation

J. Ellis, E. Gravanis, N. E. Mavromatos +1

We extend previous analyses of the violation of Lorentz invariance induced in a non-critical string model of quantum space-time foam, discussing the propagation of low-energy parti…

hep-th2002★ 6 cited

Universal Calabi-Yau Algebra: Towards an Unification of Complex Geometry

F. Anselmo, J. Ellis, D. V. Nanopoulos +1

We present a universal normal algebra suitable for constructing and classifying Calabi-Yau spaces in arbitrary dimensions. This algebraic approach includes natural extensions of re…

hep-th2002★ 60 cited

Intersecting Branes Flip SU(5)

John Ellis, P. Kanti, D. V. Nanopoulos

Within a toroidal orbifold framework, we exhibit intersecting brane-world constructions of flipped SU(5) \times U(1) GUT models with various numbers of generations, other chiral ma…

hep-ph2002★ 62 cited

Flipping SU(5) out of Trouble

John Ellis, D. V. Nanopoulos, J. Walker

Minimal supersymmetric SU(5) GUTs are being squeezed by the recent values of alpha_s, sin^2 theta_W, the lower limit on the lifetime for p to nubar K decay, and other experimental…

quant-ph2002★ 68 cited

QED-Cavity model of microtubules implies dissipationless energy transfer and biological quantum teleportation

N. E. Mavromatos, A. Mershin, D. V. Nanopoulos

We refine a QED-cavity model of microtubules (MTs), proposed earlier by two of the authors (N.E.M. and D.V.N.), and suggest mechanisms for the formation of biomolecular mesoscopic…