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arXiv 2102.07377hep-thcond-mat.str-el
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标量QED $_3$中含Chern-Simons项算子的反常维数

Anomalous dimensions of monopole operators in scalar QED$_3$ with Chern-Simons term

Shai M. Chester

摘要:

本文研究了在$2+1$维标量电动力学的红外不动点上具有最低可能拓扑荷$q=1/2$的QED算符(标量QED $_3$),其中有$N$复标量和Chern-Simons耦合$|k|=N$ .在大的$N$展开式中,该理论中的具有自旋$\ell<O(\sqrt{N})$和相关风味表示的标量算子被期望具有与$1/N$中的子前导阶相同的标度维数。我们利用状态-算符对应关系计算了子前导阶的标度维数,得到了$N-0.2789+O(1/N)$,改进了已有的前导阶结果。我们还计算了$\ell^2/N$项,该项打破了具有自旋$\ell=O(\sqrt{N})$的单极子的次领先阶的简并。

英文摘要:

We study monopole operators with the lowest possible topological charge $q=1/2$ at the infrared fixed point of scalar electrodynamics in $2+1$ dimension (scalar QED$_3$) with $N$ complex scalars and Chern-Simons coupling $|k|=N$. In the large $N$ expansion, monopole operators in this theory with spins $\ell<O(\sqrt{N})$ and associated flavor representations are expected to have the same scaling dimension to sub-leading order in $1/N$. We use the state-operator correspondence to calculate the scaling dimension to sub-leading order with the result $N-0.2789+O(1/N)$, which improves on existing leading order results. We also compute the $\ell^2/N$ term that breaks the degeneracy to sub-leading order for monopoles with spins $\ell=O(\sqrt{N})$.

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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