Category: Molecular Physics

By Eugene Oks

The e-book provides the next counterintuitive theoretical effects breaking a number of paradigms of quantum mechanics and offering substitute interpretations of a few very important phenomena in atomic and molecular physics. 1) Singular ideas of the Schrödinger and Dirac equations wouldn't have been constantly rejected: they could clarify the experimental high-energy tail of the linear momentum distribution within the floor kingdom of hydrogenic atoms. software: a special option to attempt intimate information of the nuclear constitution by way of acting atomic (rather than nuclear) experiments and calculations. 2) cost trade shouldn't be an inherently quantal phenomenon, yet fairly has classical roots. program: continuum reducing in plasmas. three) the main tough challenge of classical physics that ended in the advance of quantum mechanics — the failure to give an explanation for the soundness of atoms — will be solved inside of a classical formalism that has its roots in Dirac's works. The underlying physics should be interpreted as a non-Einsteinian time dilation. four) In two-electron atoms/ions, the spin-spin interplay (singular in its nature), frequently thought of unimportant, makes an important contribution to the binding power. five) In magnetized plasmas the normal Inglis-Teller proposal, about the variety of saw strains in spectral sequence of hydrogen, breaks down. program: new plasma diagnostic. 6) Extrema in transition energies of molecules/quasimiolecules may end up in dips (rather than often thought of satellites) inside of spectral strains. program: the experimental choice of premiums of cost alternate among multicharged ions — very important for magnetic fusion in Tokamaks, for inhabitants inversion within the gentle x-ray and VUV levels, for ion garage units, and for astrophysics.

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By Attilio Rigamonti,Pietro Carretta

This textbook, now in its 3rd variation, offers a formative advent to the constitution of topic that may function a valid foundation for college students continuing to extra complicated classes, therefore bridging the space among trouble-free physics and issues relating examine actions. the point of interest is intentionally constrained to key suggestions of atoms, molecules and solids, reading the fundamental structural points with out paying particular recognition to the similar houses. for lots of themes the purpose has been to begin from the start and to steer the reader to the brink of complex examine. This variation contains 4 new chapters facing proper levels of good subject (magnetic, electrical and superconductive) and the similar part transitions. The booklet relies on a mix of thought and solved difficulties which are built-in into the formal presentation of the arguments. Readers will locate it important in allowing them to procure uncomplicated wisdom within the broad and lovely box of condensed topic and to appreciate how phenomenological homes originate from the microscopic, quantum beneficial properties of nature.

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By Ilya G. Kaplan

the topic of this booklet — intermolecular interactions — is as very important in physics as in chemistry and molecular biology. Intermolecular interactions are chargeable for the lifestyles of drinks and solids in nature. They confirm the actual and chemical houses of gases, beverages, and crystals, the soundness of chemical complexes and organic compounds.

In the 1st chapters of this e-book, the unique qualitative description of other varieties of intermolecular forces at huge, intermediate and short-range distances is gifted. For the 1st time within the monographic literature, the temperature dependence of the dispersion forces is mentioned, and it really is proven that at finite temperatures the well-known Casimir-Polder asymptotic formulation is right purely at slim distance diversity. the writer has aimed to make the presentation comprehensible to a vast scope of readers with no oversimplification. In bankruptcy three, the equipment of quantitative calculation of the intermolecular interactions are mentioned and smooth achievements are offered. This bankruptcy may be precious for scientists appearing laptop calculations of many-electron systems.

The final chapters are dedicated to the many-body results and version potentials. greater than 50 version potentials exploited for processing experimental information and computing device simulation in numerous fields of physics, chemistry and molecular biology are represented. the commonly used worldwide optimisation equipment: simulated annealing, diffusion equation strategy, basin-hopping set of rules, and genetic set of rules are defined in detail.

Significant efforts were made to provide the publication in a self-sufficient approach for readers. the entire invaluable mathematical equipment, together with vector and tensor calculus and the weather of the crowd thought, in addition to the most tools used for quantal calculation of many-electron structures are offered within the appendices.

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By Klaus Bethge,Gernot Gruber,Thomas Stöhlker

Die Autoren prasentieren eine integrierte Darstellung von Atom- und Molekulphysik. Neben grundlegenden Themen wie Quantenmechanik und Statistik behandeln sie auch neuere Anwendungen, z.B. die Hochprazisionsspektroskopie. Das bewahrte didaktische Konzept der Vorauflage wurde beibehalten. Inhaltlich wurde der Band vollstandig uberarbeitet und aktualisiert, eine ganze Reihe neuer Kapitel sind hinzugekommen.
Dass Atom- und Molekulphysik eng miteinander vernetzt sind, ist bekannt. Diese Einsicht in einem Lehrbuch umzusetzen, conflict das Anliegen der Autoren, als sie sich an die Arbeit zur ersten Auflage dieses Bandes machten. Und der Erfolg gab ihnen Recht. Nun liegt ihr Werk in einer vollig uberarbeiten und aktualisierten Neuauflage vor.
Der Band verbindet die Vermittlung von Grundlagenwissen mit der Darstellung modernster Methoden und Anwendungen. So kann sich der Leser nicht nur die "Basics" etwa in Quantenmechanik und Statistik aneignen. Denn in den neuen Kapiteln finden sich nun auch die jungsten Erkenntnisse aus der Quantenoptik, zu Atom- und Ionenfallen, Atomen in starken Magnetfeldern und aus der Hochprazisions-spek-troskopie. Auch die Geheimnisse der Bose-Einstein-Kondensate werden geluftet.
Am erfolgreichen didaktischen Konzept der ersten Auflage wurde nichts geandert. Alle Herleitungen werden ausfuhrlich erklart und durchgerechnet, schwierige Gedankengange und komplizierte Rechnungen werden Schritt fur Schritt erlautert.

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By Tetsuo Miyazaki

Topics contain the idea of atom tunneling reactions, conclusive proof and controlling elements for such reactions in good hydrogen, tunneling dislocation movement, coherent tunneling diffusion, the construction of interstellar molecules and semiconductors utilizing tunneling reactions, the influence of atom tunneling on molecular constitution and crystalline constitution, the suppression of mutation and melanoma by way of an atom tunneling response of diet C, and atom tunneling reactions of nutrition E and of enzymes.

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By Wolfgang Becker

This booklet is an try to bridge the distance among the instrumental rules of multi-dimensional time-correlated unmarried photon counting (TCSPC) and general functions of the method. Written through an originator of the procedure and by way of sucessful clients, it covers the fundamental rules of the method, its interplay with optical imaging tools and its program to quite a lot of experimental initiatives in lifestyles sciences and scientific research.

The e-book is usually recommended for all clients of time-resolved detection ideas in biology, bio-chemistry, spectroscopy of reside structures, reside cellphone microscopy, medical imaging, spectroscopy of unmarried molecules, and different purposes that require the detection of low-level mild indications at single-photon sensitivity and picosecond time resolution.

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By Michael S. Walker

Quantum physics has grew to become our common sense concept of fact on its head. This obtainable publication describes in layperson's phrases the unusual phenomena that exist on the quantum level--a international of tiny dimensions the place not anything is really predictable, the place we reconsider causality, and data doubtless travels swifter than mild. the writer, a veteran physicist, makes use of illuminating analogies and jargon-free language to demonstrate the elemental ideas of the subatomic global and exhibit how they clarify every little thing from the chemistry round us to the formation of galaxies. He additionally explains how scientists and engineers engage with this nebulous truth and, regardless of its mysteries, in attaining result of nice precision.

Up entrance is a short heritage of the early 20th-century "quantum revolution," targeting a few of the fantastic members whose contributions replaced our view of the world--Albert Einstein, Niels Bohr, Paul Dirac, Werner Heisenberg, Erwin Schroedinger, and others. The paintings concludes with a dialogue of the various remarkable innovations that experience resulted from quantum concept, together with lasers, semiconductors, and the myriad of digital units that use them.

Lucidly written, this ebook conveys the buzz of discovery whereas increasing the reader's appreciation for a technological know-how that explores the foundation of every thing we know.

From the Hardcover edition.

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By Per-Olov Lowdin,Jun Kawai,Laszlo Kover,Hirohiko Adachi

Advances in Quantum Chemistry publishes surveys of present advancements within the speedily constructing box of quantum chemistry--a box that falls among the traditionally proven components of arithmetic, physics, chemistry, and biology. With invited stories written by means of best foreign researchers, each one featuring new effects, this caliber serial offers a unmarried car for following growth during this interdisciplinary area.

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By J. R. Van Wazer

Electron Densities in Molecules and Molecular Orbitals goals to give an explanation for the topic of molecular orbitals with no need to depend a lot on its mathematical element, making it extra approachable to those that are new to quantum chemistry.
The ebook covers subject matters reminiscent of orbitals in quantum-chemical calculations; digital ionizations and transitions; molecular-orbital swap distributions; orbital variations and calculations now not regarding orbitals; and electron densities and shapes in atoms and molecules. additionally incorporated within the e-book are the cross-sectional plots of electron densities of compounds comparable to natural compounds like methane, ethane, and ethylene; monomeric lithium fluoride and monomeric methyl lithium; hydrogen cyanide and methinophosphide; and monomeric borane and diborane.
The textual content is usually recommended in the event you have all started taking an curiosity in quantum chemistry yet don't desire to deal but with the math a part of the subject.

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By Ken-ichi Shudo,Ikufumui Katayama,Shin-Ya Ohno

This number of reports by way of top eastern researchers covers themes like ultrafast optical responses, terahertz and phonon reports, super-sensitive floor and high-pressure spectroscopy, mix of obvious and x-ray photonics. a number of similar components on the leading edge of dimension know-how and fabrics technology are incorporated. This ebook is partially in response to well-cited evaluation articles within the jap language in detailed volumes of the magazine of the Vacuum Society of Japan.

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