General aspects of heterotic string compactifications on stacks and gerbes
General aspects of heterotic string compactifications on stacks and gerbes
复制标题
堆栈和非洲菊杂种优势串压缩的一般方面
DOI:
10.4310/atmp.2015.v19.n3.a2
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发表时间:
2013
影响因子:
1.5
通讯作者:
E. Sharpe
中科院分区:
文献类型:
--
作者:
L. Anderson;B. Jia;R. Manion;B. Ovrut;E. Sharpe
In this paper we work out some basic results concerning heterotic string compactifications on stacks and, in particular, gerbes. A heterotic string compactification on a gerbe can be understood as, simultaneously, both a compactification on a space with a restriction on nonperturbative sectors, and also, a gauge theory in which a subgroup of the gauge group acts trivially on the massless matter. Gerbes admit more bundles than corresponding spaces, which suggests they are potentially a rich playground for heterotic string compactifications. After we give a general characterization of heterotic strings on stacks, we specialize to gerbes, and consider three different classes of `building blocks' of gerbe compactifications. We argue that heterotic string compactifications on one class is equivalent to compactification of the same heterotic string on a disjoint union of spaces, compactification on another class is dual to compactifications of other heterotic strings on spaces, and compactification on the third class is not perturbatively consistent, so that we do not in fact recover a broad array of new heterotic compactifications, just combinations of existing ones. In appendices we explain how to compute massless spectra of heterotic strings on stacks, derive some new necessary conditions for a heterotic string on a stack or orbifold to be well-defined, and also review some basic properties of bundles on gerbes.
影响因子:
5.4
作者:
L. Anderson;J. Gray;Yang-Hui He;A. Lukas
通讯作者:
L. Anderson;J. Gray;Yang-Hui He;A. Lukas
影响因子:
5.4
作者:
Anderson L
通讯作者:
Anderson L
影响因子:
5.4
作者:
Braun V
通讯作者:
Braun V