DRAWING THEORIES APART THE DISPERSION OF FEYNMAN DIAGRAMS IN POSTWAR PHYSICS

Download Drawing Theories Apart The Dispersion Of Feynman Diagrams In Postwar Physics ebook PDF or Read Online books in PDF, EPUB, and Mobi Format. Click Download or Read Online button to DRAWING THEORIES APART THE DISPERSION OF FEYNMAN DIAGRAMS IN POSTWAR PHYSICS book pdf for free now.

Drawing Theories Apart

Author : David Kaiser
ISBN : 9780226422657
Genre : Science
File Size : 79.54 MB
Format : PDF, Docs
Download : 338
Read : 268

Winner of the 2007 Pfizer Prize from the History of Science Society. Feynman diagrams have revolutionized nearly every aspect of theoretical physics since the middle of the twentieth century. Introduced by the American physicist Richard Feynman (1918-88) soon after World War II as a means of simplifying lengthy calculations in quantum electrodynamics, they soon gained adherents in many branches of the discipline. Yet as new physicists adopted the tiny line drawings, they also adapted the diagrams and introduced their own interpretations. Drawing Theories Apart traces how generations of young theorists learned to frame their research in terms of the diagrams—and how both the diagrams and their users were molded in the process. Drawing on rich archival materials, interviews, and more than five hundred scientific articles from the period, Drawing Theories Apart uses the Feynman diagrams as a means to explore the development of American postwar physics. By focusing on the ways young physicists learned new calculational skills, David Kaiser frames his story around the crafting and stabilizing of the basic tools in the physicist's kit—thus offering the first book to follow the diagrams once they left Feynman's hands and entered the physics vernacular.
Category: Science

Drawing Theories Apart

Author : David Kaiser
ISBN : 0226422674
Genre : Science
File Size : 88.12 MB
Format : PDF, ePub
Download : 463
Read : 844

Winner of the 2007 Pfizer Prize from the History of Science Society. Feynman diagrams have revolutionized nearly every aspect of theoretical physics since the middle of the twentieth century. Introduced by the American physicist Richard Feynman (1918-88) soon after World War II as a means of simplifying lengthy calculations in quantum electrodynamics, they soon gained adherents in many branches of the discipline. Yet as new physicists adopted the tiny line drawings, they also adapted the diagrams and introduced their own interpretations. Drawing Theories Apart traces how generations of young theorists learned to frame their research in terms of the diagrams—and how both the diagrams and their users were molded in the process. Drawing on rich archival materials, interviews, and more than five hundred scientific articles from the period, Drawing Theories Apart uses the Feynman diagrams as a means to explore the development of American postwar physics. By focusing on the ways young physicists learned new calculational skills, David Kaiser frames his story around the crafting and stabilizing of the basic tools in the physicist's kit—thus offering the first book to follow the diagrams once they left Feynman's hands and entered the physics vernacular.
Category: Science

Dyson Quantenfeldtheorie

Author : Freeman Dyson
ISBN : 9783642376788
Genre : Science
File Size : 28.24 MB
Format : PDF, ePub, Docs
Download : 411
Read : 1225

Die berühmte Vorlesung von Freeman Dyson - nun erstmals auf Deutsch. In den 1940er Jahren zeigte Freeman Dyson die Äquivalenz zwischen den beiden Formulierungen der QED - des Pfadintegralansatzes von Richard Feynman und der Variationsmethoden von Julian Schwinger - und bewies somit die Konsistenz der QED. Dieses Buch beinhaltet die wertvollen - nie zuvor auf Deutsch publizierten - Vorlesungen über Quantenfeldtheorie, die Dyson an der Cornell Universität 1951 gehalten hat. Der Theoretiker Edwin Thompson Jaynes bemerkte dazu: "Für eine Generation von Physikern waren diese Vorlesungen ein Gewinn: klarer und besser motiviert als Feynmans Vorlesungen, und schneller und kompakter als Schwingers." Zukünftige Leser werden diese Vorlesungen ebenfalls mit großem Genuss lesen und von dem klaren Stil profitieren, der für Dyson stets so charakteristisch gewesen ist. Aus dem Inhaltsverzeichnis: 1 - Die Diracgleichung, 2 - Streuprobleme und die Born-Approximation, 3 - Die klassische und quantenmechanische Feldtheorie, 4 - Beispiele quantisierter Feldtheorien (Maxwellfeld, Diracelektronen), 5 - Streuprobleme freier Teilchen (Paar Annihilation, Möller-Streuung, Klein-Nishina-Formel), 6 - Allgemeine Theorie der Streuung (Feynman-Graphen, Infrarotkatastrophe), 7 - Streuung an einem statischen Potenzial und experimentelle Ergebnisse.
Category: Science

The Genesis Of Feynman Diagrams

Author : Adrian Wüthrich
ISBN : 9048192285
Genre : Science
File Size : 51.96 MB
Format : PDF, Mobi
Download : 654
Read : 428

In a detailed reconstruction of the genesis of Feynman diagrams the author reveals that their development was constantly driven by the attempt to resolve fundamental problems concerning the uninterpretable infinities that arose in quantum as well as classical theories of electrodynamic phenomena. Accordingly, as a comparison with the graphical representations that were in use before Feynman diagrams shows, the resulting theory of quantum electrodynamics, featuring Feynman diagrams, differed significantly from earlier versions of the theory in the way in which the relevant phenomena were conceptualized and modelled. The author traces the development of Feynman diagrams from Feynman's "struggle with the Dirac equation" in unpublished manuscripts to the two of Freeman Dyson's publications which put Feynman diagrams into a field theoretic context. The author brings to the fore that Feynman and Dyson not only created a powerful computational device but, above all, a new conceptual framework in which the uninterpretable infinities that had arisen in the old form of the theory could be precisely identified and subsequently removed in a justifiable manner.
Category: Science

Compendium Of Quantum Physics

Author : Daniel Greenberger
ISBN : 3540706267
Genre : Science
File Size : 34.58 MB
Format : PDF, Kindle
Download : 138
Read : 959

With contributions by leading quantum physicists, philosophers and historians, this comprehensive A-to-Z of quantum physics provides a lucid understanding of key concepts of quantum theory and experiment. It covers technical and interpretational aspects alike, and includes both traditional and new concepts, making it an indispensable resource for concise, up-to-date information about the many facets of quantum physics.
Category: Science

Qed

Author : Richard P. Feynman
ISBN : 9783492959865
Genre : Science
File Size : 36.14 MB
Format : PDF, Mobi
Download : 224
Read : 824

Richard P. Feynman (1918–1988) erhielt 1965 für seine Beiträge zur Quantenelektrodynamik (QED) den Nobelpreis für Physik. Seine spektakulären Arbeiten zur »Theorie des Lichts und der Materie« erklärt der »brillanteste, respektloseste und einflussreichste theoretische Physiker der Nachkriegszeit« (The New York Times) hier auch für Nichtphysiker.
Category: Science

Higgs Force

Author : Nicholas Mee
ISBN : 9780957274617
Genre : Broken symmetry (Physics)
File Size : 35.74 MB
Format : PDF, Mobi
Download : 816
Read : 939

"Higgs Force tells the incredible story of the most important scientific discovery of the past 50 years. It begins with the ideas of the Greek philosophers over two thousand years ago, and takes us on a journey through many of the most important scientific discoveries in history before bringing us right up to date with the discovery of the Higgs particle in July 2012."--P. [4] of cover.
Category: Broken symmetry (Physics)

Science And Technology In The Global Cold War

Author : Naomi Oreskes
ISBN : 9780262526531
Genre : Science
File Size : 73.42 MB
Format : PDF, ePub, Docs
Download : 746
Read : 1318

The Cold War period saw a dramatic expansion of state-funded science and technology research. Government and military patronage shaped Cold War technoscientific practices, imposing methods that were project oriented, team based, and subject to national-security restrictions. These changes affected not just the arms race and the space race but also research in agriculture, biomedicine, computer science, ecology, meteorology, and other fields. This volume examines science and technology in the context of the Cold War, considering whether the new institutions and institutional arrangements that emerged globally constrained technoscientific inquiry or offered greater opportunities for it. The contributors find that whatever the particular science, and whatever the political system in which that science was operating, the knowledge that was produced bore some relation to the goals of the nation-state. These goals varied from nation to nation; weapons research was emphasized in the United States and the Soviet Union, for example, but in France and China scientific independence and self-reliance dominated. The contributors also consider to what extent the changes to science and technology practices in this era were produced by the specific politics, anxieties, and aspirations of the Cold War.ContributorsElena Aronova, Erik M. Conway, Angela N. H. Creager, David Kaiser, John Krige, Naomi Oreskes, George Reisch, Sigrid Schmalzer, Sonja D. Schmid, Matthew Shindell, Asif A. Siddiqi, Zuoyue Wang, Benjamin Wilson
Category: Science

Codes Of Finance

Author : Vincent Antonin Lépinay
ISBN : 9781400840465
Genre : Business & Economics
File Size : 64.95 MB
Format : PDF
Download : 274
Read : 872

The financial industry's invention of complex products such as credit default swaps and other derivatives has been widely blamed for triggering the global financial crisis of 2008. In Codes of Finance, Vincent Antonin Lépinay, a former employee of one of the world’s leading investment banks, takes readers behind the scenes of the equity derivatives business at the bank before the crisis, providing a detailed firsthand account of the creation, marketing, selling, accounting, and management of these financial instruments—and of how they ultimately created havoc inside and outside the bank.
Category: Business & Economics