Electronic Friction Near Metal Surface: Incorporating Nuclear Quantum Effect with Ring Polymer Molecular Dynamics
Fuente:
arXiv
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2023
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866929304497029120 |
|---|---|
| author | Bi, Rui-Hao Dou, Wenjie |
| author_facet | Bi, Rui-Hao Dou, Wenjie |
| contents | Molecular dynamics with electronic friction (MDEF) approach can describe nonadiabatic effects accurately at metal surfaces in the weak nonadiabatic limit. That being said, MDEF treats nuclear motion classically, such that the nuclear quantum effects are missing completely in the approach. To address this limitation, we combine electronic friction with Ring Polymer Molecular Dynamics (RPMD). In particular, we apply the averaged electronic friction from the metal surface to the centroid mode of the ring polymer. We benchmark our approach against quantum dynamics to show that electronic friction with RPMD (EF-RPMD) can capture zero-point energy as well as transition dynamics accurately. In addition, we show EF-RPMD can correctly predict the electronic transfer rate near metal surfaces in the tunneling limit as well as the barrier crossing limit. We expect our approach will be very useful to study nonadiabatic dynamics near metal surface when nuclear quantum effects become essential. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_08779 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Electronic Friction Near Metal Surface: Incorporating Nuclear Quantum Effect with Ring Polymer Molecular Dynamics Bi, Rui-Hao Dou, Wenjie Chemical Physics Statistical Mechanics Molecular dynamics with electronic friction (MDEF) approach can describe nonadiabatic effects accurately at metal surfaces in the weak nonadiabatic limit. That being said, MDEF treats nuclear motion classically, such that the nuclear quantum effects are missing completely in the approach. To address this limitation, we combine electronic friction with Ring Polymer Molecular Dynamics (RPMD). In particular, we apply the averaged electronic friction from the metal surface to the centroid mode of the ring polymer. We benchmark our approach against quantum dynamics to show that electronic friction with RPMD (EF-RPMD) can capture zero-point energy as well as transition dynamics accurately. In addition, we show EF-RPMD can correctly predict the electronic transfer rate near metal surfaces in the tunneling limit as well as the barrier crossing limit. We expect our approach will be very useful to study nonadiabatic dynamics near metal surface when nuclear quantum effects become essential. |
| title | Electronic Friction Near Metal Surface: Incorporating Nuclear Quantum Effect with Ring Polymer Molecular Dynamics |
| topic | Chemical Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2311.08779 |