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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2303
DTSTART:20111101T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T163802Z
LAST-MODIFIED:20111026T163404Z
LOCATION:5280 Chamberlin
SUMMARY:Approaching the string landscape\, in principle and in practic
 e\, Theory Seminar (High Energy/Cosmology)\, Jim Halverson\, Universit
 y of Pennsylvania
DESCRIPTION:Though string theory provides a unified framework for phys
 ics which generically gives rise to gauge theories and quantum gravity
 \, the existence of a landscape of string vacua makes it difficult to 
 make contact with our world\, even in principle. Solving the problem w
 ould ultimately require having a complete understanding of string theo
 retic moduli spaces\, perhaps including dynamics\, but the appropriate
  first steps are unclear. In this talk I will discuss three approaches
  to the problem. I will discuss generic issues of computing physical e
 ffects across the landscape by casting them into the language of dioph
 antine equations and relating to Hilbert's 10th problem. I will then d
 iscuss phenomenological implications of a class of gauge theories very
  strongly motivated by string theory\, including constraints on chiral
  matter which are necessary for string consistency but apparently do n
 ot appear in field theory. If time permits\, I also plan to discuss im
 portant connections between non-perturbative effects\, gauge theories\
 , and moduli space that are crucial for understanding the landscape.<b
 r>
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URL:https://www.physics.wisc.edu/events/?id=2303
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