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Origin and evolution of the multiply quantized vortex instability
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DOI：10.1103/PhysRevResearch.4.043104.png)
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We show that the dynamical instability of quantum vortices with more than a single unit of circulation results from a superradiant bound state inside the vortex core. We then reveal a striking behavior of the system in the nonlinear regime. Counter to the expectation that the instability should produce well-separated vortices, the system evolves into a bound state of corotating singularities orbiting within a few healing lengths of each other, undergoing modulations in separation. During these modulations, kinetic energy is traded back and forth between sound waves and vortical degrees of freedom.
Keyword:
KOLMOGOROV TURBULENCE
期刊
IF:
4.2
论文数:
7.6K
被引数:
2.7W
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