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arXiv 0707.3267hep-thastro-phcond-mat.mtrl-sci
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畴壁网络的动力学

Dynamics of Domain Wall Networks

Minoru Eto, Toshiaki Fujimori, Takayuki Nagashima, Muneto Nitta, Keisuke Ohashi, Norisuke Sakai

摘要:

在阿贝尔或非阿贝尔规范理论中,畴壁的网络或网被承认与具有复质量的基本希格斯场耦合。我们利用模近似研究了畴壁环的动力学,发现相位旋转引起的排斥力可以理解为Q孤子的Noether荷。非阿贝尔规范理论允许不同类型的环通过改变模量而彼此变形。这承认模几何就像一个沙漏,由两个雪茄(锥)一样的度量的一个单一的三角形循环的提示粘合。我们的结论是,所有的循环的大小往往会增长一个较晚的时间在一般模型与复杂的希格斯质量,而大小稳定在一定的值,一旦三重态质量引入希格斯场。我们还证明了畴壁网的模空间上的定常运动代表1/4 BPS的Q-壁网。

英文摘要:

Networks or webs of domain walls are admitted in Abelian or non-Abelian gauge theory coupled to fundamental Higgs fields with complex masses. We examine the dynamics of the domain wall loops by using the moduli approximation and find a phase rotation induces a repulsive force which can be understood as a Noether charge of Q-solitons. Non-Abelian gauge theory allows different types of loops which can be deformed to each other by changing a modulus. This admits the moduli geometry like a sandglass made by gluing the tips of the two cigar-(cone-)like metrics of a single triangle loop. We conclude that the sizes of all loops tend to grow for a late time in general models with complex Higgs masses, while the sizes are stabilized at some values once triplet masses are introduced for the Higgs fields. We also show that the stationary motion on the moduli space of the domain wall webs represents 1/4 BPS Q-webs of walls.

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