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Mostrando ítems 1-10 de 16
Artículo
Violating bell's inequality beyond Cirel'son's bound
(American Physical Society, 2002-02-11)
Cirel’son inequality states that the absolute value of the combination of quantum correlations appearing in the Clauser-Horne-Shimony-Holt (CHSH) inequality is bound by 2 √ 2. It is shown that the correlations of two qubits ...
Artículo
Computing the rational torsion of an elliptic curve using Tate normal form
(Elsevier, 2002-09)
It is a classical result (apparently due to Tate) that all elliptic curves with a torsion point of order n (4 ≤ n ≤ 10, or n = 12) lie in a oneparameter family. However, this fact does not appear to have been used ever for ...
Artículo
A chemical speciation of trace metals for fine urban particles
(Elsevier, 2002)
The chemical speciation of 11 metals in aerosols has been studied in 12 areas of the city of Seville (Spain). Urban particles were collected with a high-volume sampling system equipped with a cascade impactor, which ...
Artículo
Aplicacion de la tecnica PIXE (Particle Induced X-Ray Emision) a la caracterización no destructiva de una pieza de ajuar funerario (siglo I d.c.) procedente de una excavacion arqueologica (antiguo Hospital de las Cinco Llagas, Sevilla)
(Sociedad Española de Cerámica y Vidrio, 2002)
En el presente trabajo se ha realizado la caracterización de una pieza de ajuar funerario del Siglo I d.C. (anillo con pieza incrustada y grabada), encontrado en una excavación arqueológica en el antiguo Hospital de las ...
Artículo
Two qubits of a W state violate Bell's inequality beyond Cirel'son's bound
(American Physical Society, 2002-10)
It is shown that the correlations between two qubits selected from a trio prepared in a W state violate the Clauser-Horne-Shimony-Holt inequality more than the correlations between two qubits in any quantum state. Such a ...
Artículo
Surface model and exchange-correlation functional effects on the description of Pd/α-Al2O3(0001)
(AIP Publishing, 2002-01)
The interaction of Pd with the Al-terminated α-Al2O3(0001) surface has been investigated using an embedded cluster model and periodic-supercell approaches. Furthermore, several treatments of electronic exchange and correlation ...
Artículo
Asymptotically nonexpansive mappings in modular function spaces
(Elsevier, 2002-01-15)
In this paper, we prove that if ρ is a convex, σ-finite modular function satisfying a ∆2-type condition, C a convex, ρ-bounded, ρ-a.e. compact subset of Lρ and T : C → C a ρ-asymptotically nonexpansive mapping, then T has ...
Artículo
Constructions in R[x_1, ..., x_n]. Applications to K-Theory
(2002-06-25)
A classical result in K-Theory about polynomial rings like the Quillen-Suslin theorem admits an algorithmic approach when the ring of coefficients has some computational properties, associated with Gröbner bases. There ...
Artículo
Distribution of zeros of discrete and continuous polynomials from their recurrence relation
(Elsevier, 2002-05-25)
The hypergeometric polynomials in a continous or a discrete variable, whose canonical forms are the so-called classical orthogonal polynomial systems, are ob jects which naturally appear in a broad range of physical and ...
Artículo
Optimization of a Sequential Extraction Scheme for Speciation of Metals in Fine Urban Particles
(Taylor & Francis, 2002)
A sequential extraction procedure fractioned in four steps was optimized with the purpose of improving a previous scheme for determining the chemical forms of metals in fine airborne particles. The optimization was tested ...