Transporte y fenómenos colectivos en materia actuada y activa
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2024
Defense date
20/06/2024
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Universidad Complutense de Madrid
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Abstract
El objetivo de la presente tesis ha sido el estudio y entendimiento de las características y fenómenos que ocurren en sistemas activos y actuados, no solo su comportamiento a nivel colectivo, también a nivel de partícula individual, investigando más allá del estado actual de este campo. Para este propósito en el desarrollo de la tesis se han utilizado tanto herramientas de cálculo numérico para la realización de simulaciones como material de laboratorio para la realización de experimentos. En las últimas décadas, la materia activa y actuada ha sido objeto de muchos estudios para el entendimiento de su propiedades dinámica y comportamiento colectivo. Los sistemas activos son aquellos que se refieren a una clase de materia hecha de partículas capaces de convertir su energía interna en movimiento dirigido. Las partículas activas presentan auto-propulsión, dirigida por reacciones químicas o procesos biológicos. Los sistemas actuado involucran partículas extremadamente controladas por campos externos para lograr respuestas específicas. Ambos, los sistemas activos y actuados se encuentran fuera del equilibrio y no es posible su caracterización mediante la Estadística Mecánica Clásica...
The goal of the presented PhD thesis has been to unravel the features of active and actuated systems, not only when exhibiting single-particle behaviour but also at the collective level, with the aim of going beyond the current state of these fields. For this purpose, I have used both numerical and experimental tools. In the last decades active and actuated matter have been the subject of several studies addressing the understanding of their dynamical features and collective behavior. Active systems refer to a class of materials made of particles capable of converting internal energy into directed motion. Active particles exhibit self-propulsion, driven by chemical reactions or biological processes. Actuated systems involve particles which are externally controlled by external fields in order to achieve specific responses. Both active and actuated systems are non-equilibrium and elude a characterization through classical Statistical Mechanics...
The goal of the presented PhD thesis has been to unravel the features of active and actuated systems, not only when exhibiting single-particle behaviour but also at the collective level, with the aim of going beyond the current state of these fields. For this purpose, I have used both numerical and experimental tools. In the last decades active and actuated matter have been the subject of several studies addressing the understanding of their dynamical features and collective behavior. Active systems refer to a class of materials made of particles capable of converting internal energy into directed motion. Active particles exhibit self-propulsion, driven by chemical reactions or biological processes. Actuated systems involve particles which are externally controlled by external fields in order to achieve specific responses. Both active and actuated systems are non-equilibrium and elude a characterization through classical Statistical Mechanics...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Físicas, leída el 20-06-2024. Tesis formato europeo (compendio de artículos)