PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | Lorentz transformations in relativistic quantum theory? Speaker(s): Eugene Stefanovich
Abstract: I will review relativistic quantum theory that is based on Wigner's unitary representations of the Poincare group, Dirac's forms of dynamics, and Newton-Wigner's definition of the position operator. Formulas will be derived that transform particle observables between different inertial reference fra... read more
Date: 08/05/2008 - 4:00 pm
Series: Cosmology
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 | PIRSA:08050030
( Flash Presentation, Windows Presentation, Windows Video File, MP3 , PDF) Which Format?
Relativistic quantum description of particle decays Speaker(s): Eugene Stefanovich
Abstract: Wigner-Dirac relativistic quantum theory is applied to decay laws of an unstable particle in different reference frames. It is shown that decay slows down from the point of view of the moving observer, as expected. However, small deviations from Einstein's time dilation formula are also found. The o... read more
Date: 07/05/2008 - 11:00 am
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 | PIRSA:08050029
( Flash Presentation, Windows Presentation, Windows Video File, MP3 , PDF) Which Format?
Dressed particle approach in quantum field theory Speaker(s): Eugene Stefanovich
Abstract: I will review an old (Greenberg and Schweber, 1958) and undeservedly forgotten idea in quantum field theory. This idea allows one to reformulate QFT as a Hamiltonian theory of physical (rather than bare) particles and their direct interactions. The dressed particle approach is scattering-equivalent ... read more
Date: 05/05/2008 - 2:00 pm
Series: Cosmology
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