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Wiley eBooks

Optically Pumped Atoms

W. Happer, Yuan‐Yu Jau, Thad G Walker

Published Feb 17, 2010• 48 citations
Publisher

Abstract

Covering the most important knowledge on optical pumping of atoms, this ready reference is backed by numerous examples of modelling computation for optical pumped systems. The authors show for the first time that modern scientific computing software makes it practical to analyze the full, multilevel system of optically pumped atoms. To make the discussion less abstract, the authors have illustrated key points with sections of MATLAB codes. To make most effective use of contemporary mathematical software, it is especially useful to analyze optical pumping situations in the Liouville spa

DOI
10.1002/9783527629503

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Covering the most important knowledge on optical pumping of atoms, this ready reference is backed by numerous examples of modelling computation for optical pumped systems. The authors show for the first time that modern scientific computing software makes it practical to analyze the full, multilevel system of optically pumped atoms. To make the discussion less abstract, the authors have illustrated key points with sections of MATLAB codes. To make most effective use of contemporary mathematical software, it is especially useful to analyze optical pumping situations in the Liouville spa
This book provides a thorough introduction to the interaction of atoms and atomic ions with optical and magnetic fields. Particular emphasis is placed on the wealth of important multilevel effects, where atomic vapours exhibit anisotropic behaviour. As well as covering the classic two-level atom approach to light-atom interactions, a general multi-level formalism is also described in detail, and used to discuss optical pumping, two-dimensional spectroscopy and nonlinear optical dynamics. The final chapter deals with the mechanical effects of light, including the cooling and trapping of atoms. With full theoretical and experimental coverage, and over 250 illustrations, the book will be of great interest to graduate students of laser spectroscopy, quantum electronics and quantum optics, and to researchers in these fields.
This chapter introduces fundamental concepts of modern physics that emerged from groundbreaking experiments and theories in the early 20th century. It begins by exploring the photoelectric effect, which demonstrates the particle nature of light (photons) and provides a basis for mathematical analysis of this phenomenon. The chapter then discusses Bragg diffraction and the concept of the wave function, illustrating the wave nature of particles such as electrons, protons, and neutrons, and introducing the idea of wave-particle duality. The probability distribution for an electron, whether trapped in a well or traveling freely, is also examined. Rutherford scattering is presented as a pivotal experiment that revealed the existence of the positively charged atomic nucleus. The chapter further explores atomic spectra, explaining how the discrete wavelengths of emitted light indicate that atomic electrons have restricted, quantized energy levels. The Bohr model of the atom is described and mathematically analyzed to predict the spectrum of hydrogen. Finally, the chapter covers the Balmer-Rydberg formula for mathematically analyzing the spectrum of hydrogen. The content is organized into sections covering the photoelectric effect, Bragg diffraction and the wave function, Rutherford scattering, atomic spectra, and a summary of the key concepts. This chapter provides an introduction to the revolutionary ideas of modern physics, including the dual nature of light and matter and the quantized nature of the atom. The chapter includes numerous worked examples and concludes with problems for the student to apply their knowledge.
Information theory lies at the heart of modern technology, underpinning all communications, networking, and data storage systems. This book sets out, for the first time, a complete overview of both classical and quantum information theory. Throughout, the reader is introduced to key results without becoming lost in mathematical details. Opening chapters present the basic concepts and various applications of Shannon's entropy, moving on to the core features of quantum information and quantum computing. Topics such as coding, compression, error-correction, cryptography and channel capacity are covered from classical and quantum viewpoints. Employing an informal yet scientifically accurate approach, Desurvire provides the reader with the knowledge to understand quantum gates and circuits. Highly illustrated, with numerous practical examples and end-of-chapter exercises, this text is ideal for graduate students and researchers in electrical engineering and computer science, and practitioners in the telecommunications industry. Further resources and instructor-only solutions are available at www.cambridge.org/9780521881715.
Abstract This book bridges the gap between introductory quantum mechanics and the research front of modern optics and scientific fields that make use of light. While suitable as a reference for the specialist in quantum optics, it also targets non-specialists from other disciplines who need to understand light and its uses in research. It introduces a single analytic tool, the density matrix, to analyze complex optical phenomena encountered in traditional as well as cross-disciplinary research. It moves swiftly in a tight sequence from elementary to sophisticated topics in quantum optics, including optical tweezers, laser cooling, coherent population transfer, optical magnetism, electromagnetically induced transparency, squeezed light, and cavity quantum electrodynamics. A systematic approach starts with the simplest systems—stationary two-level atoms—then introduces atomic motion, adds more energy levels, and moves on to discuss first-, second-, and third-order coherence effects that are the basis for analyzing new optical phenomena in incompletely characterized systems. Unconventional examples and original problems are used in exploring a mathematical methodology which can tackle virtually any new problem involving light. The steady progression from "simple" to "elaborate" makes the book accessible not only to students from traditional subject areas that make use of light, but also to researchers such as biophysicists using mechanical effects of light; photochemists developing coherent control for rare species detection; biomedical engineers imaging through scattering media; electromechanical engineers working on molecular design of materials for electronics and space; electrical and computer engineers developing schemes for quantum computation, cryptography, frequency references, and the like.