Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/130538
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Applicability of quantum thermal baths to complex many-body systems with various degrees of anharmonicity |
Autor: | Hernández-Rojas, J.; Calvo, Florent; Noya, Eva G. CSIC ORCID | Fecha de publicación: | 2015 | Editor: | American Chemical Society | Citación: | Journal of Chemical Theory and Computation 11: 861- 870 (2015) | Resumen: | © 2015 American Chemical Society. The semiclassical method of quantum thermal baths by colored noise thermostats has been used to simulate various atomic systems in the molecular and bulk limits, at finite temperature and in moderately to strongly anharmonic regimes. In all cases, the method performs relatively well against alternative approaches in predicting correct energetic properties, including in the presence of phase changes, provided that vibrational delocalization is not too strong-neon appearing already as an upper limiting case. In contrast, the dynamical behavior inferred from global indicators such as the root-mean-square bond length fluctuation index or the vibrational spectrum reveals more marked differences caused by zero-point energy leakage, except in the case of isolated molecules with well separated vibrational modes. To correct for such deficiencies and reduce the undesired transfer among modes, empirical modifications of the noise power spectral density were attempted to better describe thermal equilibrium but still failed when used as semiclassical preparation for microcanonical trajectories. | URI: | http://hdl.handle.net/10261/130538 | DOI: | 10.1021/ct500678z | Identificadores: | doi: 10.1021/ct500678z issn: 1549-9626 |
Aparece en las colecciones: | (IQF) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
12
checked on 13-abr-2024
WEB OF SCIENCETM
Citations
10
checked on 29-feb-2024
Page view(s)
224
checked on 19-abr-2024
Download(s)
123
checked on 19-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.