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Autor González López, Artemio |
Documentos disponibles escritos por este autor (51)
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Finkel Morgenstern, Federico ; González López, Artemio ; López Maroto, Antonio ; Rodríguez González, Miguel Ángel | American Physical Society | 2000-10-17We show that the most general inflaton potential in Minkowski spacetime for which the differential equation for the Fourier modes of the matter fields reduces to Lame's equation is of the form V(phi)=lambda phi^4/4+Kphi^2/2+mu/(2 phi^2)+V_0. As [...]![]()
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A generalization of the classical one-dimensional Darboux transformation to arbitrary n- dimensional oriented Riemannian manifolds is constructed using an intrinsic formulation based on the properties of twisted Hodge Laplacians. The classical t[...]![]()
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In this paper we study the su(m) spin Sutherland (trigonometric) model of D-N type and its related spin chain of Haldane-Shastry type obtained by means of Polychronakos's freezing trick. As in the rational case recently studied by the authors, w[...]![]()
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Finkel Morgenstern, Federico ; González López, Artemio ; León Yebra, Carlos ; Rodríguez González, Miguel Ángel | IOP Publishing | 2018-04We study the thermodynamics and critical behavior of su(m|n) supersymmetric spin chains of Haldane-Shastry type with a chemical potential term. We obtain a closed-form expression for the partition function and deduce a description of the spectru[...]![]()
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Enciso, Alberto ; Finkel Morgenstern, Federico ; González López, Artemio | Elsevier Masson | 2012-11We study the thermodynamic properties of spin chains of Haldane-Shastry type associated with the A(N-1) root system in the presence of a uniform external magnetic field. To this end, we exactly compute the partition function of these models for [...]