On the vacua of N=8 gauged supergravity in 4 dimensions
On the vacua of N=8 gauged supergravity in 4 dimensions
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关于 N=8 4 维超重力的真空
DOI:
10.1016/j.nuclphysb.2012.01.023
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
G. Inverso
中科院分区:
文献类型:
--
作者:
G. DallʼAgata;G. Inverso
We discuss a simple procedure for finding vacua of gauged supergravity models, based on the variation of the embedding tensor rather than on a direct minimization of the scalar potential. We apply this procedure to N=8 gauged supergravity in 4 dimensions. We easily recover many of the previously known vacua, also completing their scalar mass spectrum, and we apply our procedure to find a dozen of new analytical vacuum solutions. The analysis shows an interesting structure on the moduli spaces of these vacua and provides new criteria to determine the expected value of the cosmological constant by a simple inspection of the group properties of the embedding tensor.