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arXiv 1607.02589hep-thgr-qcmath-phmath.MP
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四元(超)扭子扩张与一般超空间

Quaternionic (super)twistors extensions and general superspaces

Diego Julio Cirilo-Lombardo, Victor N. Pervushin

摘要:

为了将超引力作为张量表示来处理,我们构造了四维N-扩展四元数超空间,(单态)普通Penrose扭量公式的分级扩展,在作者[14]以前的工作中进行,N = p + k:这些四元数超空间具有4 + k(N-k)个偶四元数坐标和4 N个奇四元数坐标,其中每个坐标是由四个C-feld组成的四元数(分别为玻色子和费米子)。这些超空间的维度(偶数和奇数部门)的字段内容给出并举例说明选定的物理情况。在这种情况下,超引力场的数目由四维N-扩展四元数超空间的张量表示的分量数目决定。从这一理论背景中阐明了张量中心荷对任意N(甚至是USp(N)= Sp(N;HC)\ U(N;HC))的作用。

英文摘要:

In a attempt to treat a supergravity as a tensor representation, the 4-dimensional N-extended quaternionic superspaces are constructed from the (diffeomorphyc)graded extension of the ordinary Penrose-twistor formulation, performed in a previous work of the authors[14], with N = p + k: These quaternionic superspaces have 4 + k (N - k) even-quaternionic coordinates and 4N odd- quaternionic coordinates where each coordinate is a quaternion composed by four C-felds (bosons and fermions respectively). The fields content as the dimensionality (even and odd sectors) of these superspaces are given and exemplified by selected physical cases. In this case the number of felds of the supergravity is determined by the number of components of the tensor representation of the 4-dimensional N-extended quaternionic superspaces. The role of tensorial central charges for any N even USp (N) = Sp (N;HC) \ U (N;HC) is elucidated from this theoretical context.

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