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: http://zebu.uoregon.edu/~uochep/seminars/seminars-fall04.html
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October 11, 2004 (Monday) Eric Torrence, University of Oregon
October 18, 2004 (Monday) Michael Merkin, Moscow State University
October 25, 2004 (Monday) Dave Soper, University of Oregon
November 1, 2004 (Monday) Xavier Calmet, University of North Carolina at Chapel Hill
November 22, 2004 (Monday) Roman Buniy, University of Oregon
4:00 pm, 472 Willamette Hall
Refreshments served at 3:45
4:00 pm, 472 Willamette Hall
Refreshments served at 3:45
4:00 pm, 472 Willamette Hall
Refreshments served at 3:45
I describe some recent progress on Yang-Mills theories formulated on noncommutative spaces and in particular how to formulate the standard model on such spaces.
4:00 pm, 472 Willamette Hall
Refreshments served at 3:45
We show that the null energy condition is directly related to the signature of the kinetic term for small fluctuations in a broad class of classical field theories of scalars and gauge bosons. When the null energy condition is violated, instabilities necessarily arise. In models of the dark energy, where T_{00}>0, the null energy condition reduces to the condition that w\ge -1.
4:00 pm, 472 Willamette Hall
Refreshments served at 3:45