Quantization of Fayet-Iliopoulos Parameters in Supergravity
Quantization of Fayet-Iliopoulos Parameters in Supergravity
复制标题
超重力中 Fayet-Iliopoulos 参数的量化
DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
E. Sharpe
中科院分区:
文献类型:
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作者:
J. Distler;E. Sharpe
In this short article we discuss quantization of the Fayet-Iliopoulos parameter in supergravity theories. We argue that, in supergravity, the Fayet-Iliopoulos parameter determines a lift of the group action to a line bundle, and such lifts are quantized. Just as D-terms in rigid $mathcal{N}=1$ supersymmetry are interpreted in terms of moment maps and symplectic reductions, we argue that in supergravity the quantization of the Fayet-Iliopoulos parameter has a natural understanding in terms of linearizations in geometric invariant theory quotients, the algebro-geometric version of symplectic quotients.