105 citations · 112 across the 4 of their papers we have counts for
6 papers
Discovery of a wide companion near the deuterium burning mass limit in the Upper Scorpius association
V. J. S. Bejar, M. R. Zapatero Osorio, A. Perez-Garrido +5
We present the discovery of a companion near the deuterium burning mass limit located at a very wide distance, at an angular separation of 4.6+/-0.1 arcsec (projected distance of ~…
A Very Intuitive Geometric Picture of the 24-cell, and Lattices Given by Using the Hopf Maps
Eric Lewin Altschuler, Antonio Perez--Garrido
We use the Hopf fibrillation to give simple and intuitive geometric constructions of the 24-cell, and lattices.
A Novel Symmetric Four Dimensional Polytope Found Using Optimization Strategies Inspired by Thomson's Problem of Charges on a Sphere
Eric Lewin Altschuler, Antonio Perez-Garrido, Richard Stong
Inspired by, and using methods of optimization derived from classical three dimensional electrostatics, we note a novel beautiful symmetric four dimensional polytope we have found…
Defect free global minima in Thomson's problem of charges on a sphere
Eric Lewin Altschuler, Antonio Perez-Garrido
Given unit points charges on the surface of a unit conducting sphere, what configuration of charges minimizes the Coulombic energy ? Due to an exponent…
New Global Minima for Thomson's Problem of Charges on a Sphere
Eric Lewin Altschuler, Antonio Perez-Garrido
Using numerical arguments we find that for = 306 a tetrahedral configuration () and for N=542 a dihedral configuration () are likely the global energy minimum for Tho…
Configuration space in electron glasses
A. Perez-Garrido, M. Ortuno, A. M. Somoza +1
We study numerically the configuration space at low energy of electron glasses. We consider systems with Coulomb interactions, short-range interactions and no interactions. First,…