The L∞-algebra of the S-matrix

The L∞-algebra of the S-matrix
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S 矩阵的 L∞ 代数

DOI:
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发表时间:
2019
影响因子:
5.4
通讯作者:
Alex S. Arvanitakis
Alex S. Arvanitakis
中科院分区:
物理与天体物理2区
文献类型:
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作者:
Alex S. Arvanitakis

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指出QFT的单粒子不可约真空关联函数是L∞-代数的结构常数,只要不存在局域规范反常,L∞-代数的Jacobi恒等式就成立. S-矩阵元素的LSZ规定被确定为L∞-代数的“最小模型定理”的一个实例。这将封闭弦场论的代数结构推广到具有质量间隙的任意QFT,并导致振幅的递归关系(尽管这些关系只在树级上立即有用,在那里它们简化为Berends-Giele式关系,如[1]所示)。
We point out that the one-particle-irreducible vacuum correlation functions of a QFT are the structure constants of an L∞-algebra, whose Jacobi identities hold whenever there are no local gauge anomalies. The LSZ prescription for S-matrix elements is identified as an instance of the “minimal model theorem” of L∞-algebras. This generalises the algebraic structure of closed string field theory to arbitrary QFTs with a mass gap and leads to recursion relations for amplitudes (albeit ones only immediately useful at tree-level, where they reduce to Berends-Giele-style relations as shown in [1]).
DOI: 10.1007/jhep07(2018)016
发表时间: 2018
影响因子: 5.4
作者:
Adamo T
通讯作者: Adamo T
DOI: 10.1142/s0217751x19500313
发表时间: 2019
影响因子: 1.6
作者:
Arvanitakis A
通讯作者: Arvanitakis A