(t) Twisted Strings and Orbifolds’
نویسنده
چکیده
How can these symmetries be broken to SU(3) x SU(2) x U(1) in four dimensions? One powerful approach to string symmetry breaking was proposed in a beautiful paper by Candelas, Horowitz, Strominger and Witten [l]. This group advocated compactifying the heterotic string on M4 x K, where M4 is four-dimensional Minkowski space, and K is a compact six-dimensional manifdld of SU(31 holonomv. a so-called Calabi-Yau soace. Toioiogical metf;ods were used to show that ;ompactifications on Md x K give rise to chiral fermions in four dimensions.
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تاریخ انتشار 1986