2019/12/31 by A. Farolfi, D. Trypogeorgos, Dimitrios Trypogeorgos +5 · 76 citations
Physics and Astronomy · #Binary number #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Component (thermodynamics) #Condensed matter physics #Interferometry #Magnetic field #Magnetic trap #Measure (data warehouse) #Phase (matter) #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #Superfluidity #cond-mat.quant-gas
paper · pdf · doi:10.1103/physrevlett.125.030401
published in Physical Review Letters 125(3), 030401 (American Physical Society) · 8 pages, 8 figures
arxiv created 2020/07/09 · openalex publication_date 2020/07/15 · arxiv updated 2020/07/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We experimentally investigate the dynamics of spin solitary waves (magnetic solitons) in a harmonically trapped, binary superfluid mixture. We measure the in situ density of each pseudospin component and their relative local phase via an interferometric technique we developed and as such, fully characterize the magnetic solitons while they undergo oscillatory motion in the trap. Magnetic solitons exhibit nondispersive, dissipationless longtime dynamics. By imprinting multiple magnetic solitons in our ultracold gas sample, we engineer binary collisions between solitons of either the same or opposite magnetization and map out their trajectories.