Abstract
In the context of the exact factorization of the electron-nuclear wave function, the coupling between electrons and nuclei beyond the adiabatic regime is encoded (i) in the time-dependent vector and scalar potentials and (ii) in the electron-nuclear coupling operator. The former appear in the Schrödinger-like equation that drives the evolution of the nuclear degrees of freedom, whereas the latter is responsible for inducing non-adiabatic effects in the electronic evolution equation. As we have devoted previous studies to the analysis of the vector and scalar potentials, in this paper we focus on the properties of the electron-nuclear coupling operator, with the aim of describing a numerical procedure to approximate it within a semiclassical treatment of the nuclear dynamics.
Original language | English |
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Pages (from-to) | 546-555 |
Number of pages | 10 |
Journal | Annalen der Physik |
Volume | 527 |
Issue number | 9-10 |
DOIs | |
State | Published - Oct 2015 |
Externally published | Yes |
Keywords
- exact factorization
- non-adiabatic process
- semiclassical approximation
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy