论文标题
$ t \ bar t $ defermed免费QFTS中的复合操作员
Composite operators in $T\bar T$-deformed free QFTs
论文作者
论文摘要
我们研究了$ t \ b t $实现的二维免费场理论中复合算子的扰动重新归一化。在大规模和无质量的情况下，应力能量张量的重新归一化模式不同。尽管在后一种情况下，在扰动膨胀中，规范应力张量并未重新归一化，但在大规模理论中，线性阶时有诱导的反应。对于无质量的理论，我们的结果与[1]中最近得出的一般公式相匹配。
We study perturbative renormalization of the composite operators in the $T\bar T$-deformed two-dimensional free field theories. The pattern of renormalization for the stress-energy tensor is different in the massive and massless cases. While in the latter case the canonical stress tensor is not renormalized up to high order in the perturbative expansion, in the massive theory there are induced counterterms at linear order. For a massless theory our results match the general formula derived recently in [1].
