Quantentheorie Iii (9 results)

OBroschur. 169 Seiten. Zustand: Broschurränder leicht berieben. Size: 8°.

3., vollständig überarbeitete Auflage. 320 Seiten, Format 12,4 x 18,9 cm, originalkartonierter u. mattkaschierter Einband. * Literaturverzeichnis u. Register auf den Seiten 311-320. Erhaltung: Auf dem rückseitigen Deckel ein Preis-Etikett (DM 29,80). Sonst keine weiteren Mängel. Insgesamt sehr gut erhalten [Eine größere Sammlung Physik, Mathematik, Astronomie und verwandte Gebiete wird derzeit in den Bestand eingearbeitet. Sie finden diese Titel bei uns in den gleichnamigen Rubriken]. Sprache: Deutsch.…

Gr.-8°, Ln. m. SU. XII, 277 S. Neuwertiges Ex. / Fine Copy // »Dieses Buch . ist der dritte Band von Sir Karl Poppers lang erwartetem Postskript zur Logik der Forschung. Obgleich es schon vor [über vierzig] Jahren geschrieben wurde, ist es . immer noch so aktuell wie damals: Es enthält den Entwurf einer neuen Kosmologie und es stellt einige der fundamentalsten Annahmen der aktuellen Forschung der Physik in Frage. Wer Gelehrtenstreitigkeiten und Ironie in der Wissenschaftsgeschichte zu goutieren weiß, der wird die in diesem Band auf ihn wartenden seltenen Genüsse zu schätzen wissen, wo Popper mit seiner Attacke direkt ins Zentrum der aktuellen Debatte in der Quantenphysik vorstößt. In einer Zeit, in der die meisten seriösen Physiker Induktivisten, Subjektivisten, Positivisten und Instrumentalisten sind, in der sie versuchen, diese Positionen in der Physik zu verankern, in dieser Zeit schlägt Popper eine Interpretation der Physik und sogar der ganzen Kosmologie vor, die deduktivistisch, realistisch, anti-positivistisch und anti-instrumentalistisch ist. Man kann sich kaum eine schärfere Prüfung für die Ideen eines Philosophen wie Popper vorstellen, als ihn inmitten einer solchen Generation von Physikern leben zu lassen. Poppers über ein halbes Jahrhundert hinweg anhaltendes Bedürfnis, Ideen zu schmieden, sie zu prüfen und zu gestalten, sie tatsächlichen und möglichen Einwänden von Seiten der abstraktesten Theoretiker des esoterischsten aller modernen Fächer auszusetzen, hat dazu beigetragen, seinen Ideen die ihnen eigene lapidare Prägnanz zu geben. Und es gibt ihnen noch etwas, das für das gegenwärtige philosophische Denken keineswegs typisch ist: wissenschaftliches Gewicht und zugleich kulturelle Relevanz.« Der Herausgeber im Nachwort ISBN: 9783161475689 Sprache: Deutsch Gewicht in Gramm: 579.…

Hardcover. Condition: gut. 1990. In der Fachwelt genießt das umfassende, zehnbändige Lehrbuch der theoretischen Physik von L. D. Landau und E. M. Lifschitz hohes Ansehen. Auch der hier angebotene Band III - der nichtrelativistischen Quantentheorie und ihren vielfältigen Anwendungen gewidmet - trägt zu diesem hohen Ansehen bei. Darstellung und Stil sind, wie auch in den anderen Bänden, sehr elegant und modern. Im Unterschied zu manchen mehr abstrakten Darstellungen der Quantentheorie werden hier die physikalischen Aussagen und Zusammenhänge gegenüber dem Mathematisch-Formalen klar herausgearbeitet. Besonders wertvoll ist auch die sehr ausführliche Behandlung einer ganzen Reihe konkreter Anwendungen, so zur Theorie der Atome, der zwei- und mehratomigen Moleküle, des Atomkerns usw. DAbei kommen auch die Bewegung im Zentralfeld, im Magnetfeld, die Stötungstheorie, der quasiklassische Grenzfall, die Theorie der Symmetrie, der addition von Drehimpulsen, der elastischen und unelastischen Stöße eingehend zur Sprache. Zahlreiche Aufgaben ergänzen den Text. Pitajewski, L.P. Quantenmechanik (Landau, L.D./E.M. Lifschitz: Lehrbuch der Theoretischen Physik EAN (ISBN-13): 9783055000676 ISBN (ISBN-10): 3055000676 Gebundene Ausgabe Erscheinungsjahr: 1990 Herausgeber: Akademie Verlag ISBN/EAN: 3055000676 ISBN: 3-05-500067-6, 978-3-05-500067-6 Autor des Buches: landau und lifschitz, ziesche, achim reichel, landa, lew landau Titel des Buches: theoretische physik, theoretisch, quantenmechanik, lehrbuch der theoretischen physik iii, lehrbuch der theoretischen mechanik, quan, quanten, lew landau, lehrbuch der theoretischen physik band, lehrbuch theor, landau lifschitz In deutscher Sprache. 660 pages. 240x170 mm.…

Leipzig, Johann Ambrosius Barth, 1916. Contemp. hcloth. Gilt lettering to spine. VIII,888 a. 4 plates. (entire volume offered). Sommerfelds paper: pp. 1-94 a. pp. 125-167. A stamp on verso of titlepage. Clean and fine. First appearance of Sommerfeld's elaborated version of the fine structure of the hydrogen atom, in which he was the first to show, that relativity theory gives a quantitative account of the fine structure, and thus creating a general theory of spectral lines based on the quantum concepts."Sommerfeld's two papers.and a more elaborate version (the paper offered).surely deserves a lenghty chapter in the history of the old quantum theory."Pais, Bohr p. 186 ff)."This extraordinary extension, enrichment, and precision of Bohr?s theory by Sommerfed contributed decisively to its rapid and widespread acceptance. Only five years after Bohr?s first publication Sommerfeld, recognizing that the mathematical development of this quantum-theoretical atomic model had reached a conclusion of sorts, undertook a comprehensive exposition of the field. HisAtombau and Spektallinien, of which the first edition appeared late in 1919, immediately became the bible of atomic physics and its successive editions, appearing almost annually in the early 1920?s, chronicled the progress of this field up to the eve of the introduction of quantum mechanics."(DSB). - Parkinson "Breakthroughs", 1916 P.The volume contains other notable papers by Paul S. Epstein "Zur Quantentheorie", Stark, P. Ehrenfest "Adiabatische Invarianten und Quantentheorie" and A. Einstein "Über Friedrich Kottlers Abhandlung "Über Einsteins Áquivalenzhypothese und die Gravitation" pp. 639-642.…

1st Edition. THREE FULL VOLUMES, 1st EDITIONS OF HÜCKEL'S THREE LONG PAPERS ON THE QUANTUM MECHANICS OF AROMATIC AND UNSATURATED MOLECULES, TOGETHER CONSITUTING THE HÜCKEL METHOD OR HÜCKEL MOLECULAR ORBITAL METHOD (HMO) & PROVIDING "THE FIRST QUANTUM THEORETICAL DESCRIPTION OF BENZENE" (DSB). As a concept, molecular orbital theory " -- a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms but are treated as moving under the influence of the nuclei in the whole molecule" -- was extendable to large molecules of atoms, but Hückel was the first to do so (Wikipedia). Beginning in 1931 and with the first of these papers, Erich Hückel developed an approach that could be used for conjugated systems, [meaning] the electron is considered free to travel throughout the length of a conjugated system" (Allen, Biophysical Chemistry, 276). The three founders of 20th c. quantum chemistry were Erich Hückel, Friedrich Hund, and Robert S. Mullikan. Hückel studied physics and mathematics in Göttingen and 1929, Bohr suggested that he "should try to apply the modern quantum mechanics to chemical problems, especially the double bonds of carbon. The development of the so-called Hückel molecular orbital theory is regarded as his opus magnum" (Bard, Electrochemical Dictionary 426). Mulliken later referred to the first of Hückel's papers offered here as 'monumental'" (Karachalios, Erich Hückel, 77). In the first of these papers, "Hückel gave two descriptions of benzene: his first method, which eventually came to be known as the valence bond method, and a second, which involved the application of molecular orbital methods. Hückel believed that the experimental data gave him good reasons for preferring the second approach, which was utilized by John Lennard-Jones, Hund, and Robert Mulliken. This second approach is widely known as the HMO method (Hückel's molecular orbital method)" (DSB). At its core, Hückel's molecular orbital method (HMO) is a quantum mechanical concept that gives important insight into the properties of large molecules. It is the first MO theory that could be applied to large molecules and has the advantage of being a theory that can be implemented without the aid of a computer. As well, HMO has been the starting been the starting point for more advanced theories, among them, a very successful theoretical interpretation of electronic spectra of conjugated and aromatic hydrocarbons. ALSO INCLUDED: Vol. 70 includes a paper by Arno Brasch and Fritz Lange, "Experimentell-technische Vorbereitungen" on employing atmospheric electricity as a high voltage source. ALSO: Vol. 72 includes an important paper by Oskar Klein "Zur quantenmechanischen Begrundung des zweiten Hauptsatzes der Warmelehre" in which he used "his experience in both quantum and statistical mechanics, succeeded in solving the problem of whether the quantum statistics on molecular level can explain how the entropy increases with time in accordance with the second law of thermodynamics" (Leonidovich, 874). "With a most elegant and simple mathematical argument based on a technique developed by Gibbs in 1902, Klein had succeeded in deducing [an explanation of the thermodynamic irreversibility paradoxically generated by mechanically reversible systems. Klein's equation] is often referred to as Klein's inequality or Klein's lemma, as an auxiliary theorem to his derivation of the second law" (Lindstrom, 78). ALSO: Vol. 76 includes a paper by Herbert Becker and Walther Bothe's "Die in Bor und Beryllium erregten" paper helping to establish whether, in addition to neutrons, penetrating radiation included a gamma ray component. CONDITION: Berlin: Julius Springer. 4to. 3 full volumes, NOT institutional, NO stamps or markings. Uniformally & tightly bound in blue cloth, gilt-lettered spines; minor scuffing at the edge tips. Slight toning throughout. Very good condition.…

Condition: Near Fine. Imperial 8vo (25, 4: 18, 2 cm). 8 pages, numbered 18-25. Letterpress on machine paper, in original publisher's brochure on orange stock with black title printing. First offprint in the original wrappers, of this pioneering paper by Einstein, where he for the first time predicted the Bose-Einstein condensate based on the findings of indian physicist Satyendra Nath Bose. - Content: The conclusions of Einstein were empirically proofed as late as in 1995, for which the scholars E. Cornell, C. Wiemann and W. Ketterle were awarded the Nobel prize for Physics in 2001. - Condition: Mint. - Rarity: ABPC (1973ff.), Drouot Digital, LotSearch and JAP (1950ff.) records only 2 copies of this edition at auction (2012, 2004). - Reference: Schilpp-Shields 195; Weil 145.…

Dust Jacket Condition: Hardcover. First edition. SYMMETRY IN QUANTUM MECHANICS. First editions, very rare offprint issues, of the papers that laid the foundations of the role of symmetry in quantum mechanics. "Wigner was a member of the race of giants that reformulated the laws of nature after the quantum mechanics revolution of 1924-25. In a series of papers on atomic and molecular structure, written between 1926 and 1928, Wigner laid the foundations for both the application of group theory to quantum mechanics and for the role of symmetry in quantum mechanics" (David J. Gross, 'Symmetry in Physics: Wigner's legacy,' Physics Today, December 1995, pp. 46-50). Wigner was awarded the Nobel Prize in Physics in 1963 "for his contributions to the theory of the atomic nucleus and the elementary particles, particularly through the discovery and application of fundamental symmetry principles." Provenance: the last three offprints with the signature of German physicist Gregor Wentzel (1898-1978), who made important contributions to quantum mechanics; he is best known for the Wentzel-Kramers-Brillouin (WKB) approximation for finding approximate solutions to linear partial differential equations with spatially varying coefficients. "Eugene Paul Wigner (1902-1995) contributed in a seminal way to theoretical physics. He is distinguished from other physicists who laid the foundations of quantum mechanics from the mid-1920s by his pioneering application of group theory and symmetry principles to quantum mechanics. Steven Weinberg has seen in the introduction of symmetry principles to physics the core of the revolutionary world view which has come to dominate modern physics: 'Out of the fusion of relativity with quantum mechanics has evolved a new view of the world, one in which matter has lost its central role. This role has been usurped by the principles of symmetry, some of them hidden from view in the present state of the universe.' "Wigner was a key figure in building the new language Weinberg is writing about, especially in the domains of quantum mechanics and fundamental particle theory. While Wigner was not alone in carrying out this momentous project, he was a pioneer in applying symmetry considerations and group theory on a grand scale to quantum mechanics. while Hermann Weyl is sometimes thought of as the originator of the group-theoretic approach in quantum mechanics, Wigner's groundbreaking papers on group theory appeared before Weyl's important work on the subject" (M. Chayut, 'From the Periphery: the genesis if Eugene P. Wigner's application of group theory to quantum mechanics,' Foundations of Chemistry 3 (2001), 55-78). "In the spring of 1926, Heisenberg had written a paper ['Mehrkörperproblem und Resonanz in der Quantenmechanik,' Zeitschrift für Physik, 38 Band, pp. 411-426] on quantum states of two identical electrically charged oscillators symmetrically coupled to each other. These, he found, separate into two sets of states, one symmetric, the other antisymmetric, under exchange of the oscillator coordinates. He further discovered that radiative transitions can occur only between states within each set, never between one set and the other. He went on to conjecture that non-combining sets should likewise exist if the number of identical particles is larger than two, but had not yet found a proof. Six weeks later, this work led Heisenberg to give the theory of a famous, yet unsolved two-electron problem, the spectrum of the helium atom. "Wigner, who had read these papers soon after his return to Berlin, had become interested in this more-than-n identical particle problem. He rapidly mastered the case n = 3 (without spin) [the first offered paper]. His methods were rather laborious; for example, he had to solve a (reducible) equation of degree six. It would be pretty awful to go on in this way to higher n. So he went to consult the mathematician Johnny von Neumann. In the late 1950s Wigner explained to me what happened next. "When he posed his question to von Neumann - Wigner told me - Johnny walked to a corner of the room, faced the wall, and started mumbling to himself. After a while he turned around and said: 'You need the theory of group characters.' At that moment Eugene had no idea what that theory was about. Whereupon von Neumann went to Issai Schur, obtained reprints of two of his papers, and gave them to Wigner. '[Those were] so easy to read, and of course it was clear that that was the solution.' Within weeks, he had completed a second paper, now for the general n-particle problem [the second offered paper]. It contains these lines: 'It is clear that one can hardly apply these elementary methods [he had used for n = 3] to the case of 4 electrons, since the computational difficulties get to be too large. There exists, however, a well-developed mathematical theory which one can use here: . . . group theory. . . . Herr von Neumann has kindly directed me to the relevant literature. . . . When I told Herr von Neumann the result of the calculations for n = 3, he correctly predicted the general result' . Thus did group theory enter quantum mechanics. "Wigner has said later: 'I had a bad conscience because I felt that I should have published [that] second paper together with von Neumann.' Joint publications did soon follow, however, three papers on atomic spectra which take account of the spin of the electron" (Pais, The Genius of Science, p. 335). "Wigner perfected the group-theoretical 'explanation of certain properties of spectra' in three later communications [the last three offered papers] by taking care of the specific 'quantum mechanics of the spinning electron,' which he signed together with his friend John von Neumann and submitted in December 1927, February 1928 and June 1928, respectively. Von Neumann frequently came from Berlin to discuss matters with Wigner, who recalled: 'These papers were written principally by me, but I felt that I had to express my gratitude to von Neumann for having introduced me to the work of Fr. Signed.…

Halbleinen. Condition: Gut. 94 Seiten Guter Zustand Ohne Jahresangabe. Bibl-Ex.Einband berieben und leicht beschädigt ha1017409 Sprache: Deutsch Gewicht in Gramm: 400.