| 词条 | Valentine Bargmann |
| 释义 |
Valentine "Valya" Bargmann (April 6, 1908 – July 20, 1989)[1] was a German-American mathematician and theoretical physicist. BiographyBorn in Berlin, Germany, to a German Jewish family, Bargmann studied there from 1925 to 1933. After the National Socialist Machtergreifung, he moved to Switzerland to the University of Zürich where he received his Ph.D. under Gregor Wentzel. He emigrated to the U.S., barely managing immigration acceptance as his German passport was to be revoked—with only two days of validity left. At the Institute for Advanced Study in Princeton (1937–46) he worked as an assistant to Albert Einstein,[2] publishing with him and Peter Bergmann on classical five-dimensional Kaluza–Klein theory (1941). He taught at Princeton University since 1946, to the rest of his career. He pioneered understanding of the irreducible unitary representations of SL2(R) and the Lorentz group (1947). He further formulated the Bargmann–Wigner equations with Eugene Wigner (1948), for particles of arbitrary spin, building up on work of several theorists who pioneered quantum mechanics.[3][4]Bargmann's theorem (1954) on projective unitary representations of Lie groups gives a condition for when a projective unitary representation of a Lie group comes from an ordinary unitary representation of its universal cover. Bargmann further discovered the Bargmann–Michel–Telegdi equation (1959) describing relativistic precession; Bargmann's limit of the maximum number of QM bound states of a potential (1952); and the holomorphic representation in the Segal–Bargmann space (1961), including the Bargmann kernel. Bargmann was elected a Fellow of the American Academy of Arts and Sciences in 1968.[5] In 1978 he received the Wigner Medal, together with Wigner himself, in the founding year of the prize. In 1988 he received the Max Planck Medal of the German Physical Society. He was also a talented pianist. He died in Princeton in 1989. References1. ^{{cite book |year=1999 |url=https://books.google.com/books?isbn=0309064341 |chapter=Valentine Bargmann |title=Biographical Memoirs, Vol. 76 |pages=37–50 |publisher=National Academy Press|isbn=0-309-06434-1}} 2. ^Witten, E. (2014). "A Note On Einstein, Bergmann, and the Fifth Dimension", [https://arxiv.org/abs/1401.8048 arXiv:1401.8048] [https://arxiv.org/pdf/1401.8048.pdf pdf] 3. ^V. Bargmann [https://www.jstor.org/stable/1969129 Irreducible Unitary Representations of the Lorentz Group] The Annals of Mathematics 2nd Ser., Vol. 48, No. 3 (Jul., 1947), pp. 568-640 4. ^{{cite journal|author1=Bargmann, V.|author2=Wigner, E. P.|title=Group theoretical discussion of relativistic wave equations|year=1948|journal=Proc. Natl. Acad. Sci. USA|volume=34|pages=211–23|url=http://www.pnas.org/cgi/content/citation/34/5/211|issue=5|doi=10.1073/pnas.34.5.211|bibcode=1948PNAS...34..211B|pmc=1079095}} 5. ^{{cite web|title=Book of Members, 1780-2010: Chapter B|url=http://www.amacad.org/publications/BookofMembers/ChapterB.pdf|publisher=American Academy of Arts and Sciences|accessdate=May 17, 2011}} External links
Selected bibliography1934: "Über den Zusammenhang zwischen Semivektoren and Spinoren und die Reduktion der Diracgleichung für Semivektoren". Helv. Phys. Acta 7:57-82.
13 : 1908 births|1989 deaths|20th-century American mathematicians|20th-century German mathematicians|20th-century American physicists|Fellows of the American Academy of Arts and Sciences|Members of the United States National Academy of Sciences|German physicists|German Jews|Institute for Advanced Study visiting scholars|Mathematical physicists|University of Zurich alumni|Jewish physicists |
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