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VOLUME 52 | ISSUE 7 | PAGE 419
Decay of nonsingular vortex in superf luid 3He-A near the transition to the A1 phase
Vortices in 3He-A in a strong magnetic field near the transition to the A x phase are discussed. It is shown that a nonsingular vortex with two quanta of circulation splits into two nonsingular single-quantum Mermin-Ho vortices. The distance between the Mermin-Ho vortices in a vortex pair diverges near the transition to the A, phase. The possibility for observing this effect in experiments with ultrasound is discussed.




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