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arXiv 0903.3792hep-th
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畴壁间弦的动力学

Dynamics of Strings between Domain Walls

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

摘要:

在畴壁之间伸展或终止于畴壁上的涡弦的宽度以前被发现是1/4 BPS状态。在弦位置的零模式中,两个相邻畴壁之间的每个区域中的弦的质心被示出为是不可归一化的,而其余的是可归一化的。我们用两种方法研究了在分离畴壁间伸展的涡弦的动力学,即1/4 BPS态的模空间(测地线)近似和壁有效作用量中弦端点的带电粒子近似。在第一种方法中,我们得到了显式的有效拉格朗日量,并找到了90度的正面碰撞散射。第二种方法假设畴壁有效作用量为U(1)^N规范理论,对于分离弦,两种方法的结果一致。本文基于我们的论文arXiv:0810.3495 [hep-th]。

英文摘要:

Configurations of vortex-strings stretched between or ending on domain walls were previously found to be 1/4 BPS states. Among zero modes of string positions, the center of mass of strings in each region between two adjacent domain walls is shown to be non-normalizable whereas the rests are normalizable. We study dynamics of vortex-strings stretched between separated domain walls by using two methods, the moduli space (geodesic) approximation of full 1/4 BPS states and the charged particle approximation for string endpoints in the wall effective action. In the first method we obtain the effective Lagrangian explicitly and find the 90 degree scattering for head-on collision. In the second method the domain wall effective action is assumed to be U(1)^N gauge theory, and we find a good agreement between two methods for well separated strings. This paper is based on our paper arXiv:0810.3495 [hep-th].

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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