论文标题
平面量子电动力学中的量子平价保护
Quantum parity conservation in planar quantum electrodynamics
论文作者
论文摘要
量子平价保护在扰动理论中的所有订单中均已验证无数平价 - $ u（1）\ times U（1）$平面量子电动力学（QED $ _3 $）模型。在Bogoliubov-parasiuk-parasiuk-hepp-Zimmermermann-lowenstein（BPHZL）重新分配方法的框架内，存在两个无质量的费米子（Lowenstein-Zimmermann（LZ）减法方案），以使其损坏的基础差异对1--划分，以使超级分量差异为1--，以使超级分量差异为1--紫外线差异的模型最多为2循环。最后，证明BPHZL的重新归一化方法保留了考虑的模型的奇偶校验，这与普通的无质量平价$ U（1）$ QED $ _3 $相反。
Quantum parity conservation is verified at all orders in perturbation theory for a massless parity-even $U(1)\times U(1)$ planar quantum electrodynamics (QED$_3$) model. The presence of two massless fermions requires the Lowenstein-Zimmermann (LZ) subtraction scheme, in the framework of the Bogoliubov-Parasiuk-Hepp-Zimmermann-Lowenstein (BPHZL) renormalization method, in order to subtract the infrared divergences induced by the ultraviolet subtractions at 1- and 2-loops, however thanks to the superrenormalizability of the model the ultraviolet divergences are bounded up to 2-loops. Finally, it is proved that the BPHZL renormalization method preserves parity for the model taken into consideration, contrary to what happens to the ordinary massless parity-even $U(1)$ QED$_3$.
