Eto Minoru, Hashimoto Koji, Marmorini Giacomo, Nitta Muneto, Ohashi Keisuke, Vinci Walter
Institute of Physics, University of Tokyo, Komaba 3-8-1, Tokyo 153-8902, Japan.
Phys Rev Lett. 2007 Mar 2;98(9):091602. doi: 10.1103/PhysRevLett.98.091602. Epub 2007 Mar 1.
We show that local and semilocal strings in Abelian and non-Abelian gauge theories with critical couplings always reconnect classically in collision, by using moduli space approximation. The moduli matrix formalism explicitly identifies a well-defined set of the vortex moduli parameters. Our analysis of generic geodesic motion in terms of those shows right-angle scattering in head-on collision of two vortices, which is known to give the reconnection of the strings.
我们证明，通过使用模空间近似，具有临界耦合的阿贝尔和非阿贝尔规范理论中的局域弦和半局域弦在碰撞时总是会经典地重新连接。模矩阵形式明确地确定了一组定义明确的涡旋模参数。我们根据这些参数对一般测地线运动的分析表明，两个涡旋在正面碰撞时会发生直角散射，这已知会导致弦的重新连接。
