FRANCK, J und G HERTZ - PROVING THE QUANTIZED MODEL OF THE BOHR ATOM AND PLANCK'S QUANTUM THEORYBiblio.com
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191448028Braunschweig Friedr. Vieweg & Sohn 1914. Lex8vo. Contemp hcloth gilt spine. Lower spine end a bit frayed otherwise very fine. In: "Verhandlungen der deutschen Physikalischen Gesellschaft im Jahre 1914" 16. Jahrgang. IX1072 pp. Franck & Hertz' papers: pp. 457-467 a. 512-517 textillustr. Fine and clean. <br/><br/><em>First apperance of the famous Franck-Hertz Experiment which is considered as a new and independent support not only of Planck's quantum theory and Einstein's light-quantum hypothesis but also of Bohr's theory of the atom with stationary states of discrete energies.Franck and Hertz were awarded the Nobel Prize in Physics in 1925 for this work and Franck concluded his Nobel lecture with the words "We know only to well that we owe the wide recognition that our work received to contact with the great concepts and ideas of M. Planck and in particular Niels Bohr.""In their famous experiments Franck and Hertz' showed that electrons could impart energy to a mercury atom only if they had a kinetic energy exceeding 4.9 ev. and that exactly this quantum of energy was taken up by the mercury atom causing it to emit light of the resonance line Å 2537. It was the first direct proof of the quantized nature of the energy transfer and of the connection of the quantum DeltaE of energy with the frequency p = DeltaE/h of the light emitted as the result of the transfer. These experiments are rightly regarded as the first decisive proof of the reality of the quantized energy levels that had just been postulated by Niel’s Bohr." DSB.See: Siegmund Brandt "The Harevest of a Century. Discoveries of Modern Physics in 100 Episodes" Episode 25 The Franck-Hartz Experiment 1914 pp. 102-104.The volume contains another importent paper ALBERT EINSTEIN "Beiträge zur Quantentheorie" pp. 820-828. First edition. "In this paper. two considerations are given which are interrelated by a common goal inasmuch as it is attempted to derive two of the most importent achievementss of quantum theory viz. Planck's radiation law and Nernst's third law of thermodynamics in a new manner. The proofs do not involve Boltzmann's equation and are thus based enterely on macroscopic thermodynamics. They do introduce however the quantum hupothesis. Einstein points out that the alleged 'proofs' which try to derive the theorem of Nernst from the mere fact that the heat capacity of all substances goes to zero at absolute zero temterature are not genuine." Cornelius Lanczos.Weil No 67. </em> hardcover
19992091202133200535Kaitaku-sha 1999. Soft Cover. Fine. Number of books: 20 Kaitaku-sha paperback
192747023London Harrison And Sons Ltd. 1927. Royal8vo. Contemp. full cloth. A small stamp on verso of titlepage. In: "Proceedings of the Royal Society of London" Series A Vol. 114. VIIX748 pp. entire volume offered. Dirac's papers: pp. 243-265 a. pp. 710-728. Clean and fine. <br/><br/><em>First appearance of these milestone papers in Quantum Physics constituting the first step in Quantum Field Theory and the invention of the Second Quantifization Method. By these papers Dirac "gave the foundation for that theory quantum electrodynamics"Pais."A New Radiation Theory. Dirac liked his transformation theory because it was the outcome of a planned line of research and not a fortuitous discovery. He forced his future investigations to fit it. The first results of this strategy were almost miraculous. First came his new radiation theory in February 1927 which quantized for the first time James Clerk Maxwell’s radiation in interaction with atoms. Previous quantum-mechanical studies of radiation problems except for Jordan’s unpopular attempt retained purely classical fields. In late 1925 Jordan had applied Heisenberg’s rules of quantization to continuous free fields and obtained a light-quantum structure with the expected statistics Bose Einstein and dual fluctuation properties. Dirac further demonstrated that spontaneous emission and its characteristics—previously taken into account only by special postulates—followed from the interaction between atoms and the quantum field. Essential to this success was the fact that Dirac’s transformation theory eliminated from the interpretation of the quantum formalism every reference to classical emitted radiation contrary to Heisenberg’s original point of view and also to Schrödinger’s concept of as a classical source of field.This work was done during Dirac’s visit to Copenhagen in the winter of 1927. Presumably to please Bohr who insisted on wave-particle duality and equality Dirac opposed the "corpuscular point of view" to the quantized electromagnetic "wave point of view." He started with a set of massless Bose particles described by symmetric waves in configuration space. As he discovered by’ playing with the equations ’ this description was equivalent to a quantized Schrödinger equation in the space of one particle; this’ second quantization’ was already known to Jordan who during 1927 extended it into the basic modern quantum field representation of matter. Dirac limited his use of second quantization electromagnetic to radiation: to establish that the corpuscular point of view once brought into this form was equivalent to the wave point of view."DSB. </em> hardcover
192948904Berlin Julius Springer 1929 u. 1930. Bound in 2 contemp. uniform hcloth. Spine ends a bit worn cloth broken on fronthinge to vol. 56. binding not loose. In: "Zeitschrift für Physik. Herausgegeben von Karl Scheel" 56. und 59. Band. VII867 pp. u. VII874 pp. 2 entire volumes offered. Heisenberg & Pauli's paper: pp. 1-61 a. pp. 168-190. Internally clean. <br/><br/><em>First appearance of these two papers of seminal importence as Heisenberg and Pauli here laid the foundation by using a new method for the quantum field theory and gave the "relativistic formulation of quantum electrodynamics in the presence off charges and currents"Pais. They were the first to attempt a general formulation of quantum electrodynamics by setting up a general scheme for the quantization of fields which they hoped would be applicable to the Maxwell field.In the papers they also introduced what is today called "gauge fixing" which from then on are among the precious tools of field theory."Heisenberg and Pauli thus established the basic structure of QFT which can be found in any introduction to QFT up to the present day" Stanford Encyclopaedia of Philosophy. </em> hardcover
192948182Berlin Julius Springer 1929 u. 1930. Bound in 2 contemp. uniform hcloth over marbled boards. A stamp to top of titlepages. Gilt lettering to spine. In: "Zeitschrift für Physik. Herausgegeben von Karl Scheel" 56. und 59. Band. VII867 pp. u. VII874 pp. 2 entire volumes offered. Heisenberg & Pauli's paper: pp. 1-61 a. pp. 168-190. Internally clean and fine. <br/><br/><em>First appearance of these two papers of seminal importence as Heisenberg and Pauli here laid the foundation by using a new method for the quantum field theory and gave the "relativistic formulation of quantum electrodynamics in the presence off charges and currents"Pais. They were the first to attempt a general formulation of quantum electrodynamics by setting up a general scheme for the quantization of fields which they hoped would be applicable to the Maxwell field.In the papers they also introduced what is today called "gauge fixing" which from then on are among the precious tools of field theory."Heisenberg and Pauli thus established the basic structure of QFT which can be found in any introduction to QFT up to the present day" Stanford Encyclopaedia of Philosophy. </em> hardcover
19822111902160201271Tottori prefecture 1982. Soft Cover. Fine. Volume: 18 volumes Tottori prefecture paperback
1991ZB3938081991-2002. volumes 1-20. 1991-2002. partly bound library markings textually clean & tight price is for the set. - If you are reading this this item is actually physically in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties taxes or fees required by recipient's country. Photos available upon request. unknown