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Download e-book for kindle: Atoms, Molecules and Photons: An Introduction to Atomic-, by Wolfgang Demtröder

By Wolfgang Demtröder

ISBN-10: 3642102972

ISBN-13: 9783642102974

* offers a distinct joint advent to atomic, molecular and quantum physics with a variety of examples of applications
* thoroughly revised, up-to-date variation with new sections masking all present advancements, equivalent to x-ray optics, ion-cyclotron-resonance spectrometer, attosecond lasers, ultraprecission frequency dimension and atomic interferometry

This creation to Atomic and Molecular Physics explains how our current version of atoms and molecules has been built over the past centuries either via many experimental discoveries and, from the theoretical facet, by way of the advent of quantum physics to the sufficient description of micro-particles. It illustrates the wave version of debris by means of many examples and indicates the bounds of classical description. The interplay of electromagnetic radiation with atoms and molecules and its capability for spectroscopy is printed in additional element and particularly lasers as sleek spectroscopic instruments are mentioned extra completely. Many examples and issues of suggestions are provided to motivate readers to actively interact in utilizing and adapting the basic physics provided during this textbook to precise situations.

Completely revised re-creation with new sections protecting all genuine advancements, like x-ray optics, ion-cyclotron-resonance spectrometer, attosecond lasers, ultraprecission frequency dimension and atomic interferometry.

Content point » Graduate

Keywords » Dielectric homes Condensed topic - Electromagnetic Radiation - Optical houses Condensed subject - Photons and Optics - Semiconductor Physics - Textbook Atomic Physics - Textbook Lasers - Textbook Molecular Physics - Textbook Quantum Physics - Textbook Spectroscopy - Wave version Particles

Related topics » Atomic, Molecular, Optical & Plasma Physics - fabrics - actual Chemistry - Quantum Physics


Best newbie textbook. The English language creation to atoms, molecules and solids is just like the German version of a similar identify in development a transparent and penetrating even for lots of scholars the 1st semester ominous quantum physics step-by-step. to organize for the examinations of the 1st 4 semesters The ebook for that reason excellent. ... ... The newbie will believe good served by way of this quantity, even if in Germany or in English talking nations. "(

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Extra resources for Atoms, Molecules and Photons: An Introduction to Atomic-, Molecular- and Quantum Physics (2nd Edition)

Sample text

45a) expressed by the average squared elongation of the particles on their statistical path (Fig. 19). The diffusion process is due to the kinetic energy of the particles and their collisions in a medium with a density gradient. The influence of collisions can be macroscopically described by the viscosity η. 45b) and therefore the mean square deviation of a particle from its position at time t = 0 in a gas with viscosity η is ξ2 = kT Δt . 3. Can One See Atoms? It depends on the temperature T , the viscosity η and the radius r of the particle and increases linearly with time Δt.

If the large disc carries a small light bulb, its statistical path over the course of time can be photographed and the path lengths between two successive collisions (the free path) can be measured (Fig. 19). The basic theory of Brownian motion was developed independently in 1905 by Albert Einstein (1879– 1955) and Marian Smoluchowski (1872–1917). 15]. We will only briefly outline the basic ideas here. Assume particles in a gas show a small gradient dn/dx of their number density n, described by the linear relation (Fig.

The Concept of the Atom Fig. 13. James Prescott Joule If the density of such a model gas is sufficiently small (r0 should be small compared to the mean distance d between the particles) it is called an ideal gas. For an ideal gas the eigenvolume Ve = (4N /3)πr03 of the N particles is small compared to the total volume V of the gas. The particles can therefore be approximately treated as point-like particles. EXAMPLE volume V consists of atoms or molecules that can be treated as small rigid balls with radius r0 .

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Atoms, Molecules and Photons: An Introduction to Atomic-, Molecular- and Quantum Physics (2nd Edition) by Wolfgang Demtröder

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