Spontaneous Splitting of a Quadruply Charged Vortex

Journal Article · Fri Nov 16 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.200403· OSTI ID:21024459

Isoshima, T; Okano, M; Yasuda, H; Kasa, K ^[1]; Huhtamaeki, J A. M. ^[2]; Kumakura, M ^[3]; Takahashi, Y ^[1]

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1. Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
2. Laboratory of Physics, Helsinki University of Technology, P. O. Box 4100, FI-02015 TKK (Finland)
3. Graduate School of Engineering, University of Fukui, Bunkyo, Fukui 910-8507 (Japan)

We studied the splitting instability of a quadruply charged vortex both experimentally and theoretically. The density defect, which is a signature of the vortex core, is experimentally observed to deform into a linear shape. The deformed defect is theoretically confirmed to be an array of four linearly aligned singly charged vortices. The array of vortices rotates and precesses simultaneously with different angular velocities. The initial state of the system is not rotationally symmetric, which enables spontaneous splitting without external perturbations.

• OSTI ID: 21024459
• Journal Information: Physical Review Letters, Vol. 99, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.99.200403; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR VELOCITY
DEFECTS
DENSITY
DISTURBANCES
INSTABILITY
PERTURBATION THEORY