Spinorial geometry and Killing spinor equations of 6D supergravity
Spinorial geometry and Killing spinor equations of 6D supergravity
复制标题
6D 超重力的旋量几何和 Killing 旋量方程
DOI:
10.1088/0264-9381/28/10/105001
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发表时间:
2011
影响因子:
3.5
通讯作者:
Akyol M
中科院分区:
文献类型:
--
作者:
Akyol M
We solve the Killing spinor equations of six-dimensional (1, 0)-supergravity coupled to any number of tensor, vector and scalar multiplets in all cases. The isotropy groups of Killing spinors are,,, Sp (1)(2), U (1)(4) and {1}(8), where in parenthesis is the number of supersymmetries preserved in each case. If the isotropy group is non-compact, the spacetime admits a parallel null 1-form with respect to a connection with torsion given by the 3-form field strength of the gravitational multiplet. The associated vector field is Killing and the 3-form is determined in terms of the geometry of spacetime. The case admits a descendant solution preserving three out of four supersymmetries due to the hyperini Killing spinor equation. If the isotropy group is compact, the spacetime admits a natural frame constructed from 1-form spinor bi-linears. In the Sp (1) and U (1) cases, the spacetime admits three and four parallel 1-forms with respect to the connection with torsion, respectively. The associated vector fields are Killing and under some additional restrictions the spacetime is a principal bundle with fibre a Lorentzian Lie group. The conditions imposed by the Killing spinor equations on all other fields are also determined.
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