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arXiv 2107.04558hep-thgr-qc
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非局域场论中的树能级散射振幅

Tree-level scattering amplitudes in nonlocal field theories

Leonardo Modesto, Gianluca Calcagni

摘要:

我们用两种方法证明了,对于一类特殊的非局域场论,在经典水平上具有线性和非线性稳定性,在量子水平上具有么正性和超重整化性或有限性,$n$点的树级散射振幅与相应的局域场论的散射振幅相同.特别是,非局域引力的$n$点振幅,无论是否与物质耦合,都与爱因斯坦的广义相对论相同。

英文摘要:

We prove in two ways that, for a special class of nonlocal field theories consistent with linear and non-linear stability at the classical level, and with unitarity and super-renormalizability or finiteness at the quantum level, the $n$-point tree-level scattering amplitudes are the same as those of the underlying local theory. In particular, the $n$-point amplitudes of nonlocal gravity, with or without coupling to matter, are the same as for Einstein's general relativity.

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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