2014/08/31 by Antonio Muñoz Mateo, A. Muñoz Mateo, Joachim Brand +1 · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Bose–Einstein condensate #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Instability #Mechanics #Nonlinear system #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Soliton #Superfluidity #Vortex #cond-mat.quant-gas
paper · pdf · doi:10.1103/physrevlett.113.255302
published as Phys. Rev. Lett. 113, 255302 (2014) · to appear in Phys. Rev. Lett
arxiv created 2014/11/21 · openalex publication_date 2014/12/19 · arxiv updated 2014/12/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Complex solitary waves composed of intersecting vortex lines are predicted in a channeled superfluid. Their shapes in a cylindrical trap include a cross, spoke wheels, and Greek Φ, and trace the nodal lines of unstable vibration modes of a planar dark soliton in analogy to Chladni's figures of membrane vibrations. The stationary solitary waves extend a family of solutions that include the previously known solitonic vortex and vortex rings. Their bifurcation points from the dark soliton indicating the onset of new unstable modes of the snaking instability are predicted from scale separation for Bose-Einstein condensates (BECs) and superfluid Fermi gases across the BEC-BCS crossover, and confirmed by full numerical calculations. Chladni solitons could be observed in ultracold gas experiments by seeded decay of dark solitons.