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Título:
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Analytical approach to sorting in periodic and random potentials
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Autor/a:
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Gleeson, James P.; Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K.
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
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Abstract:
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There has been a recent revolution in the ability to manipulate micrometer-sized objects on surfaces patterned by traps or obstacles of controllable configurations and shapes. One application of this technology is to separate particles driven across such a surface by an external force according
to some particle characteristic such as size or index of refraction. The surface features cause the trajectories of particles driven across the surface to deviate from the direction of the force by an amount that depends on the particular characteristic, thus leading to sorting. While models of this
behavior have provided a good understanding of these observations, the solutions have so far been primarily numerical. In this paper we provide analytic predictions for the dependence of the angle between the direction of motion and the external force on a number of model parameters for periodic
as well as random surfaces. We test these predictions against exact numerical simulations. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Física
-Àrees temàtiques de la UPC::Matemàtiques i estadística
-Statistical Mechanics
-Condensed Matter
-Soft condensed matter
-Surfaces
-Diffusion
-Nonlinear systems
-Nonlinear dynamics
-Sorting
-Periodic potentials
-Random potentials
-Matèria condensada
-Física estadística |
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Derechos:
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Tipo de documento:
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Artículo |
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Editor:
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American Physical Society
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Compartir:
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