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arXiv 2202.00154hep-thgr-qc
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度规-标量背景下的迹反常与诱导作用量

Trace anomaly and induced action for a metric-scalar background

Manuel Asorey, Wagno Cesar e Silva, Ilya L. Shapiro, Públio R. B. do Vale

AI总结:

该研究针对度规-标量场背景下的共形反常问题,构建两种标准协变形式的诱导作用量,分析其低能特性与重整化群、有效势的关联,拓展反常项分类并利用Pauli-Villars正则化处理全导数项不确定性。

摘要:

共形反常与反常诱导有效作用量是描述引力作用量半经典贡献的实用且简洁的方法。我们讨论了背景由度规和标量场构成时的反常情况,并以两种标准协变形式构建了诱导作用量。对低能下诱导作用量的分析揭示了其与重整化群及有效势的关联。我们将反常项的分类拓展至标量背景,并采用Pauli-Villars正则化(泡利-维拉斯正则化)考量了反常中全导数项的不确定性。

英文摘要:

The conformal anomaly and anomaly-induced effective action represent useful and economic ways to describe semiclassical contributions to the action of gravity. We discuss the anomaly in the case when the background is formed by metric and scalar fields and formulate the induced action in two standard covariant forms. The analysis of induced action at low energies reveals existing connection to the renormalization group and effective potential. The classification of anomalous terms is extended to the scalar background and ambiguities in the total derivative terms in the anomaly are considered using Pauli-Villars regularization.

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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