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17 papers · 1 filter
Tokamak MHD equilibria with reversed magnetic shear and sheared flow
G. Poulipoulis, G. N. Throumoulopoulos, H. Tasso
Analytic solutions of the magnetohydrodynamic equilibrium equations for a cylindrically symmetric magnetically confined plasma with reversed magnetic shear, s < 0, and sheared flow…
Neutrinos in a spherical box
Giomataris, J. D. Vergados
In the present paper we study some neutrino properties as they may appear in the low energy neutrinos emitted in triton decay with maximum neutrino energy of 18.6 keV. The technica…
Varying alpha, mass generation and extra dimensions
Thomas Dent
We consider variation of coupling strengths and mass ratios in and beyond the Standard Model, in the light of various mechanisms of mass generation. In four-dimensional unified mod…
Fractal Noise in Quantum Ballistic and Diffusive Lattice Systems
E. J. Amanatidis, D. E. Katsanos, S. N. Evangelou
We demonstrate fractal noise in the quantum evolution of wave packets moving either ballistically or diffusively in periodic and quasiperiodic tight-binding lattices, respectively.…
Stanley-Reisner rings and the radicals of lattice ideals
Anargyros Katsabekis, Marcel Morales, Apostolos Thoma
In this article we associate to every lattice ideal a cone and a graph with vertices the minimal generators of the Stanley-Reisner ideal…
Direct detection of supersymmetric dark matter- Theoretical rates for transitions to excited states
J. D. Vergados, P. Quentin, D. Strottman
The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe. Supersymmetry provides a natural…