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arXiv 2007.07942hep-thmath-phmath.MP
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同伦迁移与有效场论I:树级

Homotopy Transfer and Effective Field Theory I: Tree-level

Alex S. Arvanitakis, Olaf Hohm, Chris Hull, Victor Lekeu

摘要:

我们使用一般场论和强同伦代数之间的字典,提供了一个代数公式的过程中集成的同伦转移的自由度。这包括更一般的有效理论,其中一些质量模式被保留,而其他类似质量尺度的模式被整合出来,正如森在闭弦场论的背景下首次探索的那样。我们对待$L_\infty$ -代数的幂零余导子,并在对偶空间上,在幂零导子(对应于BRST收费的场论)和同伦转移提供明确的公式。然后,这些被示出为管理在树级的自由度的集成,而循环级的推广将在本文的续集中进行探索。

英文摘要:

We use the dictionary between general field theories and strongly homotopy algebras to provide an algebraic formulation of the procedure of integrating out of degrees of freedom in terms of homotopy transfer. This includes more general effective theories in which some massive modes are kept while other modes of a comparable mass scale are integrated out, as first explored by Sen in the context of closed string field theory. We treat $L_\infty$-algebras both in terms of a nilpotent coderivation and, on the dual space, in terms of a nilpotent derivation (corresponding to the BRST charge of the field theory) and provide explicit formulas for homotopy transfer. These are then shown to govern the integrating out of degrees of freedom at tree level, while the generalization to loop level will be explored in a sequel to this paper.

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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