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Scattering of vortices with excited normal modes
被引:8
作者:
Krusch, Steffen
[1
]
Rees, Morgan
[1
]
Winyard, Thomas
[2
,3
]
机构:
[1] Univ Kent, Sch Math Stat & Actuarial Sci, Canterbury, England
[2] Univ Edinburgh, Maxwell Inst Math Sci, Edinburgh, Scotland
[3] Univ Edinburgh, Sch Math, Edinburgh, Scotland
基金:
英国工程与自然科学研究理事会;
关键词:
ABELIAN HIGGS;
COSMIC STRINGS;
VORTEX;
SUPERCONDUCTORS;
D O I:
10.1103/PhysRevD.110.056050
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We consider head-on collisions at critical coupling of vortices modeled by the Abelian-Higgs model. We investigate the two-vortex scattering, whereby the vortices are excited by the shape mode causing fluctuations in the gauge-invariant quantities. When the vortices are excited with a sufficiently large amplitude the moduli space approximation fails, and we observe an interesting behavior in which the vortices can become trapped in a quasibound state with multiple bounces. We perform a detailed investigation on the behavior of these excited vortices and sample a phase space of solutions. Interestingly, we find a fractal structure dependent on the initial phase of the mode and velocity of the vortices.
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页数:18
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