Unimodular vs nilpotent superfield approach to pure dS supergravity
Unimodular vs nilpotent superfield approach to pure dS supergravity
复制标题
纯 dS 超重力的单模与幂零超场方法
DOI:
10.1007/jhep01(2021)146
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发表时间:
2021
影响因子:
5.4
通讯作者:
Bansal S
中科院分区:
文献类型:
--
作者:
Bansal S
Recent progress in understanding de Sitter spacetime in supergravity and string theory has led to the development of a four dimensional supergravity with spontaneously broken supersymmetry allowing for de Sitter vacua, also called de Sitter supergravity. One approach makes use of constrained (nilpotent) superfields, while an alternative one couples supergravity to a locally supersymmetric generalization of the Volkov-Akulov goldstino action. These two approaches have been shown to give rise to the same 4D action. A novel approach to de Sitter vacua in supergravity involves the generalisation of unimodular gravity to supergravity using a super-Stückelberg mechanism. In this paper, we make a connection between this new approach and the previous two which are in the context of nilpotent superfields and the goldstino brane. We show that upon appropriate field redefinitions, the 4D actions match up to the cubic order in the fields. This points at the possible existence of a more general framework to obtain de Sitter spacetimes from high-energy theories.
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DOI:
--
发表时间:
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期刊:
影响因子:
--
作者:
J. Bij;H. Dam;Y. Ng
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Y. Ng
DOI:
--
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期刊:
影响因子:
--
作者:
S. Kuzenko
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S. Kuzenko
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5.4
作者:
S. Li;Y. Qiu;S. Tye
通讯作者:
S. Tye
DOI:
--
发表时间:
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期刊:
影响因子:
--
作者:
J. Wess;B. Zumino
通讯作者:
B. Zumino
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
E. Bergshoeff;D. Freedman;R. Kallosh;A. Proeyen
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A. Proeyen