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Chemical Dynamics in Condensed PhasesRelaxation, Transfer and Reactions in Condensed Molecular Systems$
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Abraham Nitzan

Print publication date: 2006

Print ISBN-13: 9780198529798

Published to Oxford Scholarship Online: November 2020

DOI: 10.1093/oso/9780198529798.001.0001

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An Overview Of Quantum Electrodynamics And Matter–Radiation Field Interaction

An Overview Of Quantum Electrodynamics And Matter–Radiation Field Interaction

(p.112) 3 An Overview Of Quantum Electrodynamics And Matter–Radiation Field Interaction
Chemical Dynamics in Condensed Phases

Abraham Nitzan

Oxford University Press

Many dynamical processes of interest are either initiated or probed by light, and their understanding requires some knowledge of this subject. This chapter is included in order to make this text self contained by providing an overview of subjects that are used in various applications later in the text. In particular, it aims to supplement the elementary view of radiation–matter interaction as a time-dependent perturbation in the Hamiltonian, by describing some aspects of the quantum nature of the radiation field. This is done on two levels: The main body of this chapter is an essentially qualitative overview that ends with a treatment of spontaneous emission as an example. The Appendix gives some more details on the mathematical structure of the theory. In elementary treatments of the interaction of atoms and molecules with light, the radiation field is taken as a classical phenomenon.

Keywords:   Coulomb law, Maxwell equations, Poisson equation, blockbody radiation, classical electrodynamics, decay rate, golden rule formula, polarization, quantum electrodynamics, radiative relaxation

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