Photoabsorption Processes in Some Free and Confined Atomic Systems: Effects of Correlation, Relativistic Interactions and Confinement

Varma, Hari R., C. Deshmukh, Pranawa

ISBN 10: 3844394087 / ISBN 13: 9783844394085

Published by LAP LAMBERT Academic Publishing, 2011

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Bibliographic Details

• Title: Photoabsorption Processes in Some Free and Confined Atomic Systems: Effects of Correlation, Relativistic Interactions and Confinement
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2011
• Language: English
• ISBN 10: 3844394087
• ISBN 13: 9783844394085
• Binding: Paperback
• Condition: Like New
• Book Type: book

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Synopsis

In this book we discuss the photoabsorption processesof several closed shell systems, including atoms thatare trapped inside a fullerene molecule. Energylevels and wavefunctions are studied using Dirac-Fockmethod and we employed Relativistic Random PhaseApproximation (RRPA) and Relativistic MultichannelQuantum Defect Theory (RMQDT) to calculate thephotoionization parameters. Autoionizationresonances in Kr, Xe and Cd atoms and the Si2+ ionhave been presented and these results are discussedin the context of some very recent and sophisticatedexperimental results. The effect of confinement has beenmodeled by a spherical annular attractive shellpotential as has been done in an earliernon-relativistic study. Simultaneous effects ofconfinement, relativistic interactions andcorrelation on energy levels, wavefunctions andphotoionization parameters have been discussed indetail. This book is particularly useful for thosewho are working in atomic and molecular physics andrelated fields. This work has been done while Dr.Hari R. Varma worked as a PH.D. student at I.I.T.Madras under the guidance of Dr. P. C. Deshmukh.

About the Author

The authors Dr. Hari R. Varma and Dr. P. C. Deshmukh areworking in the field of atomic and molecular physics. Their maininterest is in the general area of electron-atom/moleculescattering and photoabsorption processes.Currently Dr. Varma is working as an assistant professor atI.I.T. Mandi and Dr. Deshmukh as a professor at I.I.T.Madras.