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arXiv 1306.4484hep-th
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关于SU(2)Skyrmions的量子化

On quantization of the SU(2) Skyrmions

D. Jurciukonis, E. Norvaisas

摘要:

SU(2)Skyrme模型的量子化有两种方法:半经典量子化和正则量子化。半经典方法不考虑量子坐标系中速度的非对易性,而对称破缺项则方便地保证了半经典孤子的稳定性。正则量子方法导致量子质量修正,而这在半经典方法中是得不到的。在这封信中,我们认为这两种方法是不等价的,并导致不同的结果。我们表明,由此产生的轮廓函数具有相同的渐近行为,但它们在靠近原点的区域中的形状是不同的。

英文摘要:

There are two known approaches for quantizing the SU(2) Skyrme model, the semiclassical and canonical quantization. The semiclassical approach does not take into account the non-commutativity of velocity of quantum coordinates and the stability of the semiclassical soliton is conveniently ensured by the symmetry breaking term. The canonical quantum approach leads to quantum mass correction that is not obtained in the semiclassical approach. In this letter we argue that these two approaches are not equivalent and lead to different results. We show that the resulting profile functions have the same asymptotic behaviour, however their shape in the region close to the origin is different.

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