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arXiv 2212.09609hep-thcond-mat.str-el
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三维$\mathcal{N}=1$超对称QED中$O(1/N_f^2)$电子质量的反常维数

Electron mass anomalous dimension at $O(1/N_f^2)$ in three-dimensional $\mathcal{N}=1$ supersymmetric QED

S. Metayer, S. Teber

摘要:

本文研究了具有$N_f$味电子的无质量三维$\mathcal{N}=1$超对称量子电动力学。在降维方案,我们计算的临界指数对应的电子和selectron场和(宇称偶)质量异常尺寸在下一个领先的顺序在$1/N_f$展开和在任意协变规范。规范不变的质量异常尺寸的电子和selectron的平等被发现是由于一个微妙的作用所发挥的ε标量。我们的一般框架还允许我们计算纯标量QED的临界指数,并恢复已知的结果旋量QED的情况下。我们的结果被认为是动态(S)电子质量产生的应用。我们发现,当动力学味对称性破缺发生在旋量QED中时,纯标量QED和超对称QED仍然处于相互作用的共形相位。

英文摘要:

We consider massless three-dimensional $\mathcal{N}=1$ supersymmetric quantum electrodynamics (QED) with $N_f$ flavours of electrons. Within the dimensional reduction scheme, we compute the critical exponents corresponding to both the electron and selectron field and (parity-even) mass anomalous dimensions at the next-to-leading order in the $1/N_f$ expansion and in an arbitrary covariant gauge. The equality of the gauge-invariant mass anomalous dimensions of the electron and the selectron is found to result from a subtle role played by the epsilon-scalars. Our general framework also allows us to compute the critical exponents of pure scalar QED and to recover known results in the case of spinor QED. An application of our results to dynamical (s)electron mass generation is considered. We find evidence that, while dynamical flavor symmetry breaking occurs in spinor QED, both pure scalar QED and supersymmetric QED remain in an interacting conformal phase.

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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