Quantum Physics of Light and Matter - Matter-Radiation Interaction

  • Luca Salasnich

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This video introduces the interaction between electromagnetic radiation and massive particles. The video is divided in 6 segments.

The first segment discusses the minimal coupling between a massive particle and the electromagnetic field and the dipole approximation for the interaction energy.

The second segment analyzes the energy of the hydrogen atom coupled to the electromagnetic radiation.

The third segment introduces the Fermi golden rule to calculate the probabilities of transitions induced by the interaction energy.

The fourth segment analyzes the spontaneous emission of photons.

The fifth segment considers the absorption of photons.

The sixth segment discusses the stimulated emission of photons.

Introduction

Ideal for MSc or PhD student of Physics or Chemistry or Engineering, to learn the three main mechanisms of electromagnetic transition.

About The Author

Luca Salasnich

Luca Salasnich is an Associate Professor of Theoretical Physics of Matter at University of Padova, Italy. He was previously a research scientist with the Italian National Research Council (CNR). Dr. Salasnich was awarded an MSc in Physics by the University of Padova in 1991, and his PhD in Theoretical Physics by the University of Florence in 1995. His fields of research are condensed matter theory and statistical physics, in particular nonlinear phenomena and macroscopic quantum effects (like superfluidity and superconductivity) in ultra-cold atomic gases and other many-body systems. At the University of Padova, Dr. Salasnich is a member of the Scientific Committee of Area 2 (Physical Sciences) and President of the Teaching Council for the BSc in Optics and Optometrics. He has written more than 130 scientific papers for international journals, with over 2500 citations.

 

About this video

Author(s)
Luca Salasnich
DOI
https://doi.org/10.1007/978-3-030-63294-6
Online ISBN
978-3-030-63294-6
Total duration
48 min
Publisher
Springer, Cham
Copyright information
© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2020

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Video Transcript

[MUSIC PLAYING]

Hi. In this video, I will discuss the interaction between matter and radiation. Here, the radiation is the magnetic radiation, namely the light. This is the introduction.

First, I will discuss the theory for investigating the interaction between radiation and matter. And this theory is based on the minimal coupling and dipole approximation. And then we consider as an example the hydrogen atom and in particular the electron of the hydrogen atom coupled to the light.

And we consider, indeed, the quantum electrodynamics of this system, discussing the Fermi golden rule, which is very important tool for this kind of analysis. And then, I will analyze in detail the three main mechanisms of electromagnetic transitions, namely the spontaneous emission, the absorption and the stimulated emission of the radiation. I hope that you will enjoy these videos.