具有修正对称破缺项的广义Skyrme模型中孤子的时空混沌
Spatiotemporal Chaos of Soliton in a Generalized Skyrme Model with the Modified Symmetrybreaking Term
摘要：
对含有质量π介子的Skyrme模型的手征对称性破缺项进行了修正，得到了与类扭结轮廓函数最吻合的刺猬轮廓函数.对于修正的拉格朗日量，B=2扭曲Skyrmion组态的能量的最小值是低于两种情况下的Skyrme拉格朗日量的值与未修改的破缺项。导出了该模型的含时hedgehog运动方程和含六阶稳定项的推广Skyrme模型的运动方程，并进行了数值积分。得到了孤子的时间演化。由于涨落的快速发展，我们观察到了孤子的自激发。
英文摘要：
The chiral symmetry-breaking term of the Skyrme model with massive pion is modified to obtain the hedgehog profile function which is in best coincidence with the kink-like profile function. For the modified Lagrangian, the minimum of the energy of the B=2 twisty skyrmion configuration is lower than the values for both the cases of the Skyrme Lagrangian with and without the non-modified symmetry-breaking term. The equations of motion for the time-dependent hedgehog of this model and for a generalizated Skyrme model including sixth-order stabilizing term are derived and integrated nummerically. The time evolution of soliton is obtained. We have observed the seft-exitation of soliton because of the fast developement of fluctuation.
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