pauli wolfgang 1900 1958 (5 Ergebnisse)

LeatherBound. Zustand: New. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Reprinted from 1950 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 426 Language: English Pages: 426.

Soft cover. Zustand: Good. 24x15cm, Series: Det Kgl. Danske Videnkabernes Selskab, Mathematisk-fysiske Meddelelser, VII, 3. Some small chips & frays to cover edges. Unopened. Good. Some wear. ["Pauli was an Austrian theoretical physicist and one of the pioneers of quantum physics. In 1945, after having been nominated by Albert Einstein, Pauli received the Nobel Prize in Physics for his "decisive contribution through his discovery of a new law of Nature, the exclusion principle or Pauli principle". The discovery involved spin theory, which is the basis of a theory of the structure of matter.,." - wikipedia].

Hardcover. Zustand: Very Good. No Jacket. 1st Edition. Frontispiece, v, 134 pp. Cheap (but probably original) cloth. Very Good. Wolfgang Paulii: Nobel Prize, Physics, 1945, 'for the discovery of the Exclusion Principle, also called the Pauli Principle.'.

Soft cover. Zustand: Fine. No Jacket. 1st Edition. First Edition. Entire issue offered, pp. 665-760. Original printed wrappers. Near Fine. Wolfgang Pauli: Nobel Prize, Physics, 1945, 'for the discovery of the Exclusion Principle, also called the Pauli Principle.' 'In the case of the exclusion principle there can never exist a limiting case where such operators can be replaced by a classical field. Using this formalism of Wigner and Jordan I could prove under very general assumptions that a relativistic invariant theory describing systems of like particles with integer spin obeying the exclusion principle would always lead to the noncommutability of physical quantities joined by a spacelike vector [note 23 here]. This would violate a reasonable physical principle which holds good for particles with symmetrical states. In this way, by combination of the claims of relativistic invariance and the properties of field quantization, one step in the direction of an understanding of the connection of spin and symmetry class could be made' (Pauli, 'Exclusion principle and quantum mechanics', Nobel Lecture, December 13, 1946; note 23 cites the paper offered here and Pauli, Ann. Inst. Poincaré, 6 (1936) 137). 'The Spin-Statistics relation was first formulated in 1939 by Markus Fierz [1], and was rederived in a more systematic way by Wolfgang Pauli [2]' (Wikipedia; [2] = paper offered here). 'Pauli's 1940 proof . . . has been the standard for almost sixty years' (Ian Duck & E. C. G. Sudarshan, Pauli and the Spin-statistics Theorem, 1998, p. x). 'It was thinking about how to reconcile the Klein Gordon and Dirac equations, and the existence of all these particles (how many more might be discovered?) that led Pauli to one of the most subtle concepts of modern physics the spin statistics theorem. In his 1940 paper, Pauli identified a vital connection between spin and quantum statistics (in the 1920s, it had been realized that something more than the Maxwell Boltzmann variety was needed at the quantum level). According to Pauli, particles of half-integer spin obey Fermi Dirac statistics (and, hence, are now called 'fermions') and those of integer spin obey Bose Einstein statistics ('bosons'). Mathematically speaking, the quantization of fields with half-integer spin relies on 'plus' commutation relations, whereas that of fields with integer spin uses 'minus' commutation relations. Put another way, the wavefunction of a system of bosons is symmetric if any pair of bosons is interchanged, but is antisymmetric for interchanged particles in a system of fermions. Subtle indeed, but from Pauli's spin statistics connection arises the exclusion principle for fermions, with its implications for atomic structure, and a 'non-exclusion' principle for bosons many bosons can adopt the same quantum state at once, as happens in a Bose Einstein condensate. Further particle discoveries since 1940 and the subsequent building of the 'standard model' have also served to confirm that nature works with both integer and half-integer spins' (Alison Wright, 'Milestone 7 (1940): Spin statistics connection', Milestones Timeline, 28 Feb. 2008, Nature Web site). The article 'was a re-elaboration of Pauli's report at the Solvay Conference of 1939' (Michela Massimi, Pauli's Exclusion Principle: The Origin and Validation of a Scientific Principle, 2005, p. 140). Also see Sin-Itiro Tomonaga & Takeshi Oka, The story of spin, 1997, p. 131ff.

4to. 1 p. Gedr. Briefpapier der ETH Zürich. An Henri Corbière mit Erläuterungen zu seiner Person: [ ] A vos questions, posées dans votre lettre du 3 mai, je peux vous répondre comme suit: 1) Mes débuts scientifiques furent faciles | 2) Ne possédant pas de fortune personnelle je vécu que de mon travail | 3) Ausschliessungsprinzip (1925) [ ]" - Das Pauli-Prinzip (auch Pauli-Verbot oder Paulisches Ausschließungsprinzip) ist ein physikalisches Gesetz, das sich in der Quantenphysik auswirkt. Es wurde 1925 von Wolfgang Pauli zur quantentheoretischen Erklärung des Aufbaus der Atome formuliert und besagte, dass je zwei Elektronen in einem Atom nicht in allen Quantenzahlen übereinstimmen können. In der modernen Formulierung besagt das Pauli-Prinzip, dass die Wellenfunktion eines Quantensystems in Bezug auf Vertauschung von identischen Fermionen antisymmetrisch ist. Da auch die Quarks als Bausteine von Protonen und Neutronen zu den Fermionen zählen, gilt das Pauli-Prinzip für die gesamte Materie im allgemein verstandenen Sinne: Fermionen schließen sich gegenseitig aus", können also nicht zur selben Zeit am selben Ort (Raumzeitpunkt) existieren. Nur so lässt sich der differenzierte Aufbau der Materie mit Atomen und Molekülen verstehen. Das Pauli-Prinzip bestimmt demnach nicht nur den Aufbau des Atoms, sondern auch den größerer Strukturen. Eine Folge ist der Widerstand, den kondensierte Materie weiterer Kompression entgegensetzt.