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SUMMARY:GLSM descriptions of heterotic compactification spaces - Ruehle\, 
 F (Universitt Bonn)
DTSTART:20120628T153000Z
DTEND:20120628T154500Z
UID:TALK38730@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Gauged Linear Sigma Models (GLSMs) provide a framework for stu
 dying different phases of compactification spaces for heterotic string the
 ories. Among them are toroidal orbifolds and smooth Calabi-Yau constructio
 ns\, both of which are very popular among string model builders. Up to now
 \, quite a few MSSM-like string models have been constructed based on thes
 e compactification spaces. We describe the construction of toroidal orbifo
 lds and describe how to obtain their smooth Calabi-Yau counterparts in the
  GLSM framework. The two regimes lie at different regions in Kahler moduli
  space\, which can be accessed by tuning the Fayet-Iliopoulos GLSM paramet
 ers. However\, upon probing the entire moduli space\, also other phases ar
 e encountered which do not have a geometric interpretation as straightforw
 ard as the previously mentioned ones. Furthermore\, there can be flop and 
 flop-like transitions which further subdivide the different phases.\n\n
LOCATION:Seminar Room 1\, Newton Institute
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