Electronic energy transfer: Localized operator partitioning of electronic energy in composite quantum systems
Abstract
A Hamiltonian based approach using spatially localized projection operators is introduced to give precise meaning to the chemically intuitive idea of the electronic energy on a quantum subsystem. This definition facilitates the study of electronic energy transfer in arbitrarily coupled quantum systems. In particular, the decomposition scheme can be applied to molecular components that are strongly interacting (with significant orbital overlap) as well as to isolated fragments. The result defines a consistent electronic energy at all internuclear distances, including the case of separated fragments, and reduces to the well-known Förster and Dexter results in their respective limits. Numerical calculations of coherent energy and charge transfer dynamics in simple model systems are presented and the effect of collisionally induced decoherence is examined.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 20, 2012
- Source ID
- 10.1063/1.4767056
Entities
People
- Paul Brumer
- Yaser Khan
Organizations
- Air Force Office of Scientific Research
- University of Toronto