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Caltech

High Energy Physics Seminar

Monday, April 15, 2013
4:00pm to 5:00pm
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Lauritsen 469
Evidence for and Obstructions to Partially Massless Gravity
Kurt Hinterbichler, Perimeter Institute,

    On de Sitter space, there exists a special value for the mass of a graviton for which the linear theory propagates 4 rather than 5 degrees of freedom.  If a fully non-linear version of the theory exists and can be coupled to known matter, it would have very interesting properties and could solve the cosmological constant problem.  I will describe evidence for and obstructions to the existence of such a theory.


 

For more information, please contact Carol Silberstein by phone at 6685 or by email at [email protected] or visit http://theory.caltech.edu/people/carol/seminar.html.