The Expanding Zoo of Calabi-Yau Threefolds
The Expanding Zoo of Calabi-Yau Threefolds
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卡拉比丘动物园规模扩大三倍
DOI:
10.1155/2011/901898
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发表时间:
2011
影响因子:
1.7
通讯作者:
Davies R
中科院分区:
文献类型:
--
作者:
Davies R
This is a short review of recent constructions of new Calabi‐Yau threefolds with small Hodge numbers and/or nontrivial fundamental group, which are of particular interest for model building in the context of heterotic string theory. The two main tools are topological transitions and taking quotients by actions of discrete groups. Both of these techniques can produce new manifolds from existing ones, and they have been used to bring many new specimens to the previously sparse corner of the Calabi‐Yau zoo, where both Hodge numbers are small. Two new manifolds are also obtained here from hyperconifold transitions, including the first example with fundamental groupS3, the smallest non‐Abelian group.
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