The Augmented Spherical Wave Method

Author: Volker Eyert
Publisher: Springer
ISBN: 3540710078
Format: PDF, Mobi
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The Augmented Spherical Wave (ASW) method is one of the powerful approaches to handle the requirement of finite basis sets in DFT calculations. It is particularly suited for the calculation of elastic properties and phonon spectra of solid-state materials. This book addresses all those who want to learn about methods for electronic structure calculations and the ASW method in particular.

Full Potential Electronic Structure Method

Author: John M. Wills
Publisher: Springer Science & Business Media
ISBN: 9783642151446
Format: PDF, Kindle
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This is a book describing electronic structure theory and application within the framework of a methodology implemented in the computer code RSPt. In 1986, when the code that was to become RSPt was developed enough to be useful, it was one of the ?rst full-potential, all-electron, relativistic implem- tations of DFT (density functional theory). While RSPt was documented p- asitically in many publications describing the results of its application, it was many years before a publication explicitly describing aspects of the method appeared. In the meantime, several excellent all-electron, full-potential me- ods had been developed, published, and become available. So why a book about RSPt now? The code that became RSPt was initially developed as a personal research tool, rather than a collaborative e?ort or as a product. As such it required some knowledge of its inner workings to use, and as it was meant to be m- imally ?exible, the code required experience to be used e?ectively. These - tributes inhibited, but did not prevent, the spread of RSPt as a research tool. While applicable across the periodic table, the method is particularly useful in describing a wide range of materials, including heavier elements and c- pounds, and its ?exibility provides targeted accuracy and a convenient and accurate framework for implementing and assessing the e?ect of new models.

Modelling and Numerical Simulations II

Author: Mordechay Schlesinger
Publisher: Springer Science & Business Media
ISBN: 9780387495866
Format: PDF
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The present volume is the second in a two-volume set dealing with modelling and numerical simulations in electrochemistry. Emphasis is placed on the aspect of nanoelectrochemical issues. It seems appropriate at this juncture to mention the n- growing body of opinion in some circles that George Box was right when he stated, three decades ago, that “All models are wrong, but some are useful”. Actually, when the statement itself was made it would have been more appropriate to say that “All models are inaccurate but most are useful nonetheless”. At present, however, the statement, as it was made, is far more appropriate and closer to the facts than ever before. Currently, we are in the midst of the age of massively abundant data. Today’s philosophy seems to be that we do not need to know why one piece of information is better than another except through the statistics of incoming and outgoing links between information and this is good enough. It is why, both in principle and in practice, one can translate between two languages, without knowledge of either. While none of this can be ignored, and it may even be true that “All models are wrong and increasingly you can succeed without them” the traditional approach of scienti?c modelling is still the order of the day. That approach may be stated as hypothesize – measure – model – test. It is in this light that the present volume should be viewed.

Kern und Teilchenphysik

Author: Claude Amsler
Publisher: vdf Hochschulverlag AG
ISBN: 3728136956
Format: PDF
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Dieses Buch bietet eine phänomenologische Einführung in die Welt der elementarsten Bausteine, die mit der Entdeckung der Radioaktivität im Jahre 1896 begann und bis zum kürzlich erfolgten Nachweis der Neutrino-Oszillationen reicht. Es richtet sich an Studierende der Physik, die die Grundlagen der Physik und Mathematik schon beherrschen. Der Stoff orientiert sich am Experiment, ist chronologisch aufgebaut und schlägt eine Brücke zwischen der Kern- und Teilchenphysik. Beschrieben werden die Methoden zur Herstellung von Teilchenstrahlen und zur Beobachtung von Teilchenreaktionen. Die bahnbrechenden Erkenntnisse werden anschaulich aus der Theorie hergeleitet und mit Messungen verglichen. Dieses Buch schliesst eine schon lange bestehende Lücke zwischen Kern- und Teilchenphysik und zwischen Experimenten und Theorie. Begriffe aus nieder- und hochenergetischen Bereichen der Teilchenphysik werden phänomenologisch hergeleitet und mit Messungen verglichen.

Grundlagen der Photonik

Author: Bahaa E. A. Saleh
Publisher: John Wiley & Sons
ISBN: 9783527406777
Format: PDF, Docs
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Schon die erste Auflage des englischen Lehrbuchs 'Fundamentals of Photonics' zeichnete sich durch seine ausgewogene Mischung von Theorie und Praxis aus, und deckte in detaillierter Darstellung die grundlegenden Theorien des Lichts ab. Es umfasste sowohl die Themen Strahlenoptik, Wellenoptik, elektromagnetische Optik, Photonenoptik, sowie die Wechselwirkung von Licht und Materie, als auch die Theorie der optischen Eigenschaften von Halbleitern. Die Photonik-Technologie hat eine rasante Entwicklung genommen seit der Publikation der ersten Ausgabe von 'Fundamentals of Photonics' vor 15 Jahren. Die nun vorliegende Zweite Auflage des Marksteins auf dem Gebiet der Photonik trägt mit zwei neuen und zusätzlichen Kapiteln den neuesten technologischen Fortschritten Rechnung: Photonische Kristalle sowie Ultrakurzpuls-Optik. Zudem wurden alle Kapitel gründlich überarbeitet und viele Abschnitte hinzugefügt, so z.B. über Laguerre-Gauss Strahlen, die Sellmeier-Gleichung, Photonenkristall-Wellenleiter, photonische Kristallfasern, Mikrosphären-Resonatoren, Optische Kohärenz Tomographie, Bahndrehimpuls des Photons, Bohrsche Theorie, Raman-Verstärker, rauscharme Avalanche-Photodioden, Abstimmkurven und Dispersions-Management.