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SUMMARY: Modular properties of amplitudes in string theory - Michael B. Gr
 een
DTSTART:20161124T130000Z
DTEND:20161124T140000Z
UID:TALK67966@talks.cam.ac.uk
CONTACT:Dr. Piotr Tourkine
DESCRIPTION:This talk will begin with a review of some elementary and not 
 so elementary features of perturbative superstring amplitudes\, emphasisin
 g connections with mathematical features  that also arise in the analysis 
 of dimensionally regularised quantum field theory.   The second half of th
 e talk will review the non-perturbative aspects of low order terms in low 
 energy expansion of graviton amplitudes\, including the manner in which th
 ey reproduce the perturbative results and how such amplitudes can be used 
 to count degeneracies of BPS states.
LOCATION:Potter Room (first floor\, Pav. B)
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