Generalised geometry from the ground up
Generalised geometry from the ground up
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从头开始的广义几何
DOI：
10.1007/jhep02(2014)075
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发表时间：
2013
影响因子：
5.4
通讯作者：
H. Nicolai
中科院分区：
文献类型：
--
作者：
H. Godazgar;M. Godazgar;H. Nicolai
b结构扩展了以前的广义几何工作，我们明确地构造了一个E7（7）-值vielbein在11维，它包含了将D = 11的超引力简化为4维后的标量玻色子自由度，通过识别新的“广义vielbeine”在11维与对偶6-形式势和对偶引力子。通过在每一步都保持与原始理论的完全壳上等价，我们的构造对D = 11超引力的任何非平凡紧化的对偶（磁）7-形式通量的非线性ansertze进行了简化，补充了已知的度规和4-形式通量的非线性ansertze。对新的维尔拜因分量的广义维尔拜因假设的初步分析揭示了D = 11超引力和普通时空协方差之外的新结构的诱人暗示，也指出了嵌入张量可能的D = 11起源。我们将这些结果推广到E8（8）。
A bstractExtending previous work on generalised geometry, we explicitly construct an E7(7)-valued vielbein in eleven dimensions that encompasses the would be scalar bosonic degrees of freedom after reduction to four dimensions of D = 11 supergravity, by identifying new “generalised vielbeine” in eleven dimensions associated with the dual 6-form potential and the dual graviton. By maintaining full on-shell equivalence with the original theory at every step our construction furnishes the non-linear ansatz for the dual (magnetic) 7-form flux for any non-trivial compactification of D = 11 supergravity, complementing the known non-linear ansätze for the metric and the 4-form flux. A preliminary analysis of the generalised vielbein postulate for the new vielbein components reveals tantalising hints of new structures beyond D = 11 supergravity and ordinary space-time covariancxe, and also points to the possible D = 11 origins of the embedding tensor. We discuss the extension of these results to E8(8).
影响因子：
5.4
作者：
D. Berman;M. Perry
通讯作者：
D. Berman;M. Perry