
handle: 10261/385329
Nous analysons ici la dynamique des molécules adsorbées dans le cadre de la diffusion de surface médiée par le volume, lorsque le mécanisme de désorption de la particule est caractérisé par un processus non markovien, tandis que l'adsorption de la particule ainsi que son mouvement dans le volume sont régis par la dynamique markovienne. Nous étudions la diffusion des particules dans les réseaux cubiques semi-infinis et finis, en analysant la probabilité conditionnelle de trouver le système sur le plan d'absorption de référence ainsi que la dispersion de surface en fonction du temps. Les résultats sont comparés à des cas markoviens connus montrant les différences qui peuvent être exploitées pour distinguer les mécanismes de désorption markoviens et non markoviens dans des situations expérimentales.
Aquí analizamos la dinámica de las moléculas adsorbidas dentro del marco de difusión superficial mediada por volumen, cuando el mecanismo de desorción de la partícula se caracteriza por un proceso no Markoviano, mientras que la adsorción de la partícula, así como su movimiento en el volumen, se rige por la dinámica Markoviana. Estudiamos la difusión de partículas tanto en retículos semiinfinitos como cúbicos finitos, analizando la probabilidad condicional de encontrar el sistema en el plano de absorción de referencia así como la dispersión superficial en función del tiempo. Los resultados se comparan con casos Markovianos conocidos que muestran las diferencias que se pueden explotar para distinguir entre los mecanismos de desorción Markovianos y no Markovianos en situaciones experimentales.
Here we analyse the dynamics of adsorbed molecules within the bulk-mediated surface diffusion framework, when the particle's desorption mechanism is characterized by a non-Markovian process, while the particle's adsorption as well as its motion in the bulk is governed by Markovian dynamics. We study the diffusion of particles in both semi-infinite and finite cubic lattices, analysing the conditional probability to find the system on the reference absorptive plane as well as the surface dispersion as functions of time. The results are compared with known Markovian cases showing the differences that can be exploited to distinguish between Markovian and non-Markovian desorption mechanisms in experimental situations.
هنا نقوم بتحليل ديناميكيات الجزيئات الممتزة داخل إطار الانتشار السطحي بوساطة كبيرة، عندما تتميز آلية امتزاز الجسيم بعملية غير ماركوفية، بينما يخضع امتزاز الجسيم وكذلك حركته في الجزء الأكبر لديناميكيات ماركوفيان. ندرس انتشار الجسيمات في كل من الشبكات المكعبة شبه اللانهائية والمحدودة، ونحلل الاحتمال الشرطي للعثور على النظام على المستوى الامتصاصي المرجعي وكذلك تشتت السطح كوظائف للزمن. تتم مقارنة النتائج مع الحالات الماركوفية المعروفة التي تظهر الاختلافات التي يمكن استغلالها للتمييز بين آليات الامتزاز الماركوفية وغير الماركوفية في المواقف التجريبية.
Surface diffusion, Quantum Coherence in Photosynthesis and Aqueous Systems, Chemical physics, Materials Science, FOS: Physical sciences, Geometry, Dynamics and Transitions in Glassy Materials, Molecular Dynamics, Oceanography, Plane (geometry), Diffusion, Phase Transitions and Critical Phenomena, Materials Chemistry, FOS: Mathematics, Markov process, Physics, Statistics, Geology, Acoustics, FOS: Earth and related environmental sciences, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Chemistry, Physics and Astronomy, Physical chemistry, Particle (ecology), Physical Sciences, Thermodynamics, Desorption, Statistical physics, Adsorption, Surface (topology), Dynamics (music), Mathematics
Surface diffusion, Quantum Coherence in Photosynthesis and Aqueous Systems, Chemical physics, Materials Science, FOS: Physical sciences, Geometry, Dynamics and Transitions in Glassy Materials, Molecular Dynamics, Oceanography, Plane (geometry), Diffusion, Phase Transitions and Critical Phenomena, Materials Chemistry, FOS: Mathematics, Markov process, Physics, Statistics, Geology, Acoustics, FOS: Earth and related environmental sciences, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Chemistry, Physics and Astronomy, Physical chemistry, Particle (ecology), Physical Sciences, Thermodynamics, Desorption, Statistical physics, Adsorption, Surface (topology), Dynamics (music), Mathematics
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