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arXiv math-ph/0306020math-phmath.MP
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关于能量动量张量

On the energy-momentum tensor

Ricardo E. Gamboa Saraví

摘要:

阐明了一般张量场论中正则张量、度规张量和Belinfante张量之间的关系。对于任何张量场T,我们定义了一个新的张量场$\til {\bm T}$,根据它可以很容易地计算出Belinfante张量。我们证明,后者是一个自然产生的任意时空的Noether定理,它符合壳上的度量。

英文摘要:

We clarify the relation among canonical, metric and Belinfante's energy-momentum tensors for general tensor field theories. For any tensor field T, we define a new tensor field $\til {\bm T}$, in terms of which the Belinfante tensor is readily computed. We show that the latter is the one that arises naturally from Noether Theorem for an arbitrary spacetime and it coincides on-shell with the metric one.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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