Jordan Pasqual (11 results)

Antworten aus naturwissenschaftlicher Sicht Gewicht in Gramm: 550 Namenseintrag, geringe äußere Gebrauchsspuren.

8vo. pp. 751-765. Navy cloth, gilt stamped spine; spine lightly freckled. Ex library Carnegie Institution of Washington Mount Wilson Observatory with call number gilt stamped on spine and library blind-stamp on front free end paper. Clean copy, handsomely bound; covers lightly freckled, else fine. RARE. FIRST EDITION of the Jordan-Klein matrices. This paper contributed to the demonstration of the close connection between quantum fields and quantum statistics. It was known that second quantization guarantees that photons obey Bose-Einstein statistics; but what of other particles which obey Bose-Einstein statistics? Jordan and Klein showed that second quantization is not confined to free particles only. One can quantize just as well the non-relativistic Shrodinger equation. "In honor of these contributions the matrices [they introduced] have been named Jordan-Klein matrices." Pais, Inward bound, pp. 338-339.

Hardcover. Condition: Very Good. 2 Volumes. Band 34 and 37. Bound in modern 3/4 crushed red Moroccan leather. Red cloth boards. TEG. Gilt spine. 5 raised bands. Fine binding and cover. Clean, unmarked pages. Ships daily. Band 34 contains "Uber die physikalischen Konsequenzen der relativistischen Axiomatik" p. 32-48 by Hans Reichenbach and "Zur Quantenmechanik" p. 858-888 by Max Born and Pasqual Jordan. Band 37 contains the first Russian paper on matrix mechanics, "Zur Quantenmechanik des rotators", 685-688 by Igor Tamm, Anwendung der Quantenmechanik auf das Problem der anomalen Zeemaneffekte by Pasqual Jordan; Werner Heisenberg, 263-277 and Zur Quantenmechanik der Stossvorgange by Max Born, 863-867. Max Born's paper would he first to clearly enunciate the probabilistic interpretation of the quantum wavefunction, which had been introduced by Erwin Schrodinger. It would be criticize by Schrodinger but lead to Einstein's quote in a letter "He [God] does not play dice.

1 S. 4to. An eine Dame: "Verzeihen Sie bitte gütigst, daß ich so spät antworte, ich war sehr angespannt tätig und komme erst jetzt dazu, die seit vielen Wochen eingegangenen Sachen zu erledigen [.]". - Mit kleinen Spuren alter Montage.

1st Edition. FIRST EDITIONS OF THREE LANDMARK PAPERS THAT TOGETHER FORMED THE THEORETICAL FOUNDATION OF QUANTUM MECHANICS. "In spite of its high-sounding name and its successful solutions of numerous problems in atomic physics, quantum theory, and especially the quantum theory of polyelectronic systems, prior to 1925, was, from the methodological point of view, a lamentable hodgepodge of hypotheses, principles, theorems, and computational recipes rather than a logical consistent theory. Every single quantum-theoretic problem had to be solved first in terms of classical physics; its classical solution had then to pass through the mysterious sieve of the quantum conditions or, as it happened in the majority of cases, the classical solution had to be translated into the language of quanta in conformance with the correspondence principle. In short, quantum theory still lacked two essential characteristics of a full-fledged scientific theory, conceptual autonomy and logical consistency" (Jammer, The Conceptual Development 196). The work of Heisenberg, Born, and Jordan in these papers began to rectify these issues and together marked the "starting point for the new quantum mechanics," also called matrix mechanics (DSB). "In May 1925, Heisenberg took on a new and difficult problem, the calculation of the line intensities of the hydrogen spectrum. Just as he had done with Kramers and Bohr, Heisenberg began with a Fourier analysis of the electron orbits. When the hydrogen orbit proved too difficult, he turned to the an harmonic oscillator. With a new multiplication rule relating the amplitudes and frequencies of the Fourier components to observed quantities, Heisenberg succeeded in quantizing the equations of motion for this system in close analogy with the classical equations of motion. In June Heisenberg returned to Göttingen, where he drafted his fundamental paper [the 1st paper], which he completed in July. In this paper Heisenberg proclaimed that the quantum mechanics of atoms should contain only relations between experimentally observable quantities. The resulting formalism served as the starting point for the new quantum mechanics, based, as Heisenberg's multiplication rule implied, on the manipulation of ordered sets of data forming a mathematical matrix. Born and his assistant, Pascual Jordan, quickly developed the mathematical content of Heisenberg's work into a consistent theory with the help of abstract matrix algebra [the 2nd paper].Their work, in collaboration with Heisenberg, culminated in their "three-man paper" ["Dreimännerarbeit", the 3rd paper] that served as the foundation of matrix mechanics. Confident of the correctness of the new theory, Heisenberg, Pauli, Born, Dirac, and others began applying the difficult mathematical formalism to the solution of lingering problems" (DSB). ALSO INCLUDED in ZfP Volume 33 is a major milestone in gravitational wave theory: the Czech physicist Guido Beck's discovery of a family of exact solutions to the equations of general relativity representing gravitational waves with cylindrical symmetry (called 'Beck vacua' or 'cylindrical gravitational waves'). His paper, "Zur Theorie Binärer Gravitationsfelder" appears on pp. 713-738. ALSO: We offer the Heisenberg paper (Volume 33) as a lone offering. Heisenberg, Werner "Über quantentheoretische Umdeutung kinematischer und mechanischer Beziehungen" in ZfP 33, 1925, pp. 879-893. ALSO, we offer Pauli's 1926 paper with the 1st significant application of & 1st validation of Heisenberg's new quantum mechanics. ("Über das Wasserstoffspektrum vom Standpunkt der neuen Quantenmechanik" in ZfP 36, 1926). CONDITION & DETAILS: In: ZfP 33 (1925), 34 (1925), 35 (1926). 8vo. (225 x 156mm). 3 full volumes. Volume 33 has no ex-libris stamps whatsoever; volumes 34 and 35 have some on the title page. Handsomely and uniformly rebound in grey linen, gilt-tooled and lettered at the spine. Tightly bound. Very clean inside and out. Near fine condition.

Condition: Very Good. First Edition. 1925-26. First edition. Three extremely influential papers marking the theoretical foundation for modern quantum mechanics and defining the discipline: "Uber quantentheorestische Umdeutung kinematischer und mechanischer Beziehungen" by Werner Heisenberg; "Zur Quantenmechanik" by Max Born and Pasqual Jordan; and "Zur Quantenmechanik II" by Born, Heisenberg and Jordan. In Zeitschrift fur Physik, Vols. 33, total pp.879-950 (Heisenberg paper pp. 879-893); Vol. 34, total pp. 795-953, lean to spine; (Born, Jordan paper 858-888); Vol. 35, total pages pp. 557-722; (Born, Heisenberg, Jordan pp 557-615). In publisher's original wrappers with new spines, ink stamp to top right of front wrappers, minor creasing and soiling to wraps. Heisenberg received the Nobel Prize for physics in 1932 for his establishment of quantum mechanics.

ORIGINAL-BLEISTIFTZEICHNUNG (18 x 15 cm), unsigniert MOTIV : Feldszene im Ersten Weltkrieg, im Passepartout, leichte Gebrauchsspuren, Ecken mit Knickspuren (dito : E.Skizzenblatt, 27,5 x 34 cm, mit Darstellung von 3 Handskizzen, teils mit weißer Kreide u. schwarzer Feder ausgemalt, unsigniert, Euro 85,-) (dito : E. Skizzenblatt, 35,5 x 17 cm, mit 3 schönen Glasfenster-Entwürfen / Allegorien zum Thema Krieg, Ruhm, Glück, eigenhändig Bezeichnung, unsigniert, schwarze Tinte über Bleistift, Euro 245,-).

E.ORIGINAL-ZEICHNUNG (Skizzenblatt (mit Bleistift und weißer Kreide, 23,2 x 32,2 cm), unsigniert. Rückseitig vom Enkel eigenhändig signiert / verifiziert : Pasqual Jordan III. DAZU : ORIGINAL-LITHOGRAPHIE (Doppelblatt, gr. 4°, leichte Gebrauchsspuren) zur 75 jährigen Jubelfeier der KÖNIGLICHEN HOCHSCHULE ZU HANNOVER am 25.V.1906 mit einem Motiv von E.P. JORDAN.

E.ORIGINAL-ZEICHNUNGEN (6 Skizzenblätter (gr. 8°- gr. 4°), mit Darstellungen von ca. 12 Details, meist Körperteilen, Arme, Beine, Kopf. - guter Einblick in die Arbeitsweise dieses ausgezeichneten Künstlers ! 1 Blatt rückseitig mit eigenhändiger Unterschrift des Enkels als Echtheitsbestätigung, leichte Gebrauchsspuren.

Condition: Near Fine. Berlin 1925 first edition. Springer. Thick octavo hardcover. 3/4 Grey cloth with yellow marbled boards. Gilt spine letters. Volume 34 of Zeitschrift fur Physik. 953p. Born and Jordan article on pages 858-888. Many other important articles in this volume by Otto Hahn, Lise Meitner, M Laue, Reiche, Smekal, others, in the volume as well. Near Fine, just slight wear, binding very secure; hinges not cracked; no owner marks; not exlib. No owner marks.Together with the work of Werner Heisenberg, this paper helped define Quantum Mechanics. Pictures available on request.

Berlin, Julius Springer, 1925-26. Bound in 4 nearly uniform contemp. hcloth. Edges a little rubbed. Stamp on title-pages. In "Zeitschrift für Physik. Hrsg. von Karl Scheel", Vols 33,34,35 and 36. VII,950"VII,953VIII,954"VII,951 pp. The offered papers: pp. 879-893 (vol.33), pp. 858-888 (vol.34), pp.557-615 (vol.35) and pp.336-363 (vol. 36). Internally fine and clean. First printings of these four absolutely fundamental papers, which together MARK THE TURNING POINT IN THE FABRICATION OF A NEW PHYSICS, Quantum Mechanics, also called "Matrix Mechanics"."In May 1925, Heisenberg took on a new and difficult problem, the calculation of the line intensities of the hydrogen spectrum. Just as he had done with Kramers and Bohr, Heisenberg began with a Fourier analysis of the electron orbits. When the hydrogen orbit proved too difficult, he turned to the anharmonic oscillator. With a new multiplication rule relating the amplitudes and frequencies of the Fourier components to observed quantities, Heisenberg succeeded in quantizing the equations of motion for this system in close analogy with the classical equations of motion.in June Heisenberg returned to Göttingen, where he drafted his fundamental paper [the first paper offered], which he completed in July. In this paper Heisenberg proclaimed that the quantum mechanics of atoms should contain only relations between experimentally observable quantities. The resulting formalism served as the starting point for the new quantum mechanics, based, as Heisenberg's multiplication rule implied, on the manipulation of ordered sets of data forming a mathematical matrix.Born and his assistant, Pascual Jordan, quickly developed the mathematical content of Heisenberg's work into a consistent theory with the help of abstract matrix algebra [the second paper offered].Their work, in collaboration with Heisenberg, culminated in their "three-man paper" ["Dreimännerarbeit" - the third paper offered] that served as the foundation of matrix mechanics. Confident of the correctness of the new theory, Heisenberg, Pauli, Born, Dirac, and others began applying the difficult mathematical formalism to the solution of lingering problems." (DSB).In the last paper offered, the Pauli-paper, he shows that the hydrogen spectrum can be derived from the new theory. His starting-point constitutes, due to Lez, a method for integrating the classical equations of motion of a particle in a Coulomb field. Pauli's paper was received on January 17, 1926, but the main result must have been obtained before November 3, 1925, for on that date, Heisenberg writes Pauli: ".Ich brauche Ihnen wohl nicht zu schreiben, wie sehr ich mich über die neue Theorie des Wasserstoffs freue." Pauli's paper convinced most physicists that Quantum Mechanics is correct. (Van der Waerden).