Six dimensional propagation of the H2 molecule confined in a Single-walled Carbon Nanotube
A study on the quantum dynamics of the hydrogen molecule embedded in the hollow cavity of a Single- walled Carbon Nanotube is presented, taking into account for the first time all six degrees of freedom of the confined molecule. A set of initial eigenstates of the trapped H2 molecule are propagated...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/69186 |
| Acceso en línea: | https://hdl.handle.net/2445/69186 |
| Access Level: | acceso abierto |
| Palabra clave: | Teoria quàntica Hidrogen Nanotubs Quantum theory Hydrogen Nanotubes |
| Sumario: | A study on the quantum dynamics of the hydrogen molecule embedded in the hollow cavity of a Single- walled Carbon Nanotube is presented, taking into account for the first time all six degrees of freedom of the confined molecule. A set of initial eigenstates of the trapped H2 molecule are propagated for 500 fs using the State Average Multiconfigurational Time-dependent Hartree approach. An initial linear momentum is added to the hydrogen molecule in order to mimic high temperature behavior, forming an angle of 0° and 45° with respect to the nanotube's axis; an additional propagation is carried out with- out adding any extra momentum. The wave packet dynamics are analyzed using projections and overlap functions in the appropriate degrees of freedom. The study reveals little correlation between the trans- lation of the confined molecule along the nanotube and the remaining degrees of freedom. |
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