Ernst Carl Gerlach Stueckelberg (February 1, 1905, Basel - September 4, 1984, Basel) was a Swiss mathematician and physicist. February 1 is the 32nd day of the year in the Gregorian Calendar. ... 1905 (MCMV) was a common year starting on Sunday (see link for calendar). ... Location within Switzerland Basel (English traditionally: Basle , German: Basel , French: Bâle , Italian: Basilea ) is Switzerlands third most populous city (166,563 inhabitants (2004); 690,000 inhabitants in the conurbation stretching across the immediate cantonal and national boundaries made Basel Switzerlands second-largest urban area as of 2003). ... September 4 is the 247th day of the year (248th in leap years). ... 1984 (MCMLXXXIV in Roman) is a leap year starting on Sunday of the Gregorian calendar. ... This article is in need of attention from an expert on the subject. ... A physicist is a scientist trained in physics. ...

In 1926 Stueckelberg got his Ph.D. at Munich under Arnold Sommerfeld. He qualified as a university lecturer together with Konrad Bleuler under supervison from Gregor Wentzel at the University of Zürich. 1926 (MCMXXVI) was a common year starting on Friday (link will take you to calendar). ... Munich and the Bavarian Alps Munich (German: München (pronounced listen) is the largest city and capital of the German Federal State of Bavaria. ... Arnold Johannes Wilhelm Sommerfeld (December 5, 1868 – April 26, 1951) was a German physicist who introduced the fine-structure constant in 1919. ... The University of Zurich (in German: Universität Zürich) is the largest university of Switzerland, in the city of Zurich. ...

In 1934 he devised a fully covariant perturbation theory for quantum fields. To quote this paper, "The approach proposed by Stueckelberg was far more powerful, but was not adopted by others at the time". It still has not been. However, besides being explicitly covariant, Stueckelberg's methods avoid vacuum bubbles. See also here. 1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ...

Independently from Hideki Yukawa, and arguably before him, he gave vector boson exchange as the theoretical explanation of the strong nuclear force in 1935. Hideki Yukawa Hideki Yukawa (湯川 秀樹, January 23, 1907 - September 8, 1981) was a Japanese theoretical physicist and the first Japanese person to win the Nobel prize. ... 1935 (MCMXXXV) was a common year starting on Tuesday (link will take you to calendar). ...

In 1942 he proposed the interpretation of the positron as a negative energy electron traveling backward in time. This article is about the year. ... The first detection of the positron in 1932 by Carl D. Anderson The positron is the antiparticle or the antimatter counterpart of the electron. ...

In 1943 he came up with a renormalization program to attack the problems of infinities in quantum electrodynamics (QED), but his paper was rejected by the Physical Review. 1943 (MCMXLIII) is a common year starting on Friday. ... Figure 1. ... Quantum electrodynamics (QED) is a quantum field theory of electromagnetism. ... Physical Review is one of the oldest and most-respected scientific journals publishing research on all aspects of physics. ...

In 1976 he was awarded the Max Planck medal. 1976 (MCMLXXVI) is a leap year starting on Thursday (link will take you to calendar). ... The Max Planck medal is an award for extraordinary achievements in theoretical physics. ...

See also

• Timeline of quantum mechanics, molecular physics, atomic physics, nuclear physics, and particle physics
• Propagator
• Relativistic dynamics
• Stückelberg action
• Stückelberg-Feynman interpretation

Timeline of quantum mechanics, molecular physics, atomic physics, nuclear physics, and particle physics 585 BC Buddha stated that there were indivisible particles of mind and matter which vibrated 3 trillion times in the blink of an eye which he called kalapas 440 BC Democritus speculates about fundamental indivisible particles---calls... In quantum mechanics and quantum field theory, the propagator gives the probability amplitude for a particle to travel from one place to another in a given time, or to travel with a certain energy and momentum. ... Twentieth century experiments showed that the physical description of microscopic and submicroscopic objects moving at or near the speed of light raised questions about such fundamental concepts as space, time, mass, and energy. ... In field theory, the Stückelberg action (named after Ernst Stueckelberg) describes a massive spin-1 field as a R (the real numbers are the Lie algebra of U(1)) Yang-Mills theory coupled to a real scalar field φ which takes on values in a real 1D affine representation of... The Stückelberg-Feynman interpretation, named for Ernst Stueckelberg and Richard Feynman, of antimatter asserts that antiparticles can be treated to be normal particles traveling backwards in time. ...

External links

• Jan Lacki, The Road to Stueckelberg's Covariant Perturbation Theory as Illustrated by Successive Treatments of Compton Scattering, physics/9903023

• http://www.valdostamuseum.org/hamsmith/ecgstcklbrg.html