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arXiv 0806.3358hep-thastro-phcond-mat.supr-con
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共形对称在Jackiw-Pi模型中的作用

The Role of Conformal Symmetry in the Jackiw-Pi Model

M. O. de Kok, J. W. van Holten

摘要:

2+1维Jackiw-Pi模型是一种非相对论性的具有点状自相互作用的带电粒子共形场论。对于特定值的相互作用强度的经典理论具有涡和多涡的解决方案,这都是退化的能量。我们计算了一阶微扰量子修正的完整集合。只有耦合常数g^2需要重整化,场和电荷e不需要重整化。它表明,在一般的共形对称性被打破的异常贡献的守恒定律,成比例的β-功能。然而,当把耦合常数限制为g^2 = +/- e^2时,β函数就消失了,这包括存在涡旋解的情况。因此涡的存在也保证了共形对称性的保持。

英文摘要:

The Jackiw-Pi model in 2+1 dimensions is a non-relativistic conformal field theory of charged particles with point-like self-interaction. For specific values of the interaction strengths the classical theory possesses vortex and multi-vortex solutions, which are all degenerate in energy. We compute the full set of first-order perturbative quantum corrections. Only the coupling constant g^2 requires renormalization; the fields and electric charge e are not renormalized. It is shown that in general the conformal symmetries are broken by an anomalous contribution to the conservation law, proportional to the beta-function. However, the beta-function vanishes upon restricting the coupling constants to values g^2 = +/- e^2, which includes the case in which vortex solutions exist. Therefore the existence of vortices also guarantees the preservation of the conformal symmetries.

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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