Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session H06: Dynamics in Trapped Gases
8:00 AM–10:00 AM,
Wednesday, June 7, 2023
Room: 206 A
Chair: David Weld, UC Santa Barbara
Abstract: H06.00004 : Dense soliton complexes in a two-component Bose-Einstein condensate*
8:36 AM–8:48 AM
Presenter:
Sean Mossman
(University of San Diego)
Authors:
Sean Mossman
(University of San Diego)
Garyfallia Katsimiga
(University of Hamburg)
Simeon I Mistakidis
(ITAMP, Harvard University)
Alejandro Romero-Ros
(University of Hamburg)
Thomas M Bersano
(Los Alamos National Laboratory)
Peter Schmelcher
(University of Hamburg)
Panayotis Kevrekidis
(University of Massachusetts Amherst)
Peter W Engels
(Washington State University)
In this work we demonstrate the experimental realization of dense soliton complexes in a quasi-one-dimensional Bose-Einstein condensate. We employ a Rabi winding technique to controllably initialize a regular array of phase jumps in a two-component atomic superfluid. Depending on the density of phase windings we observe different collective behavior, and for the densest arrays we observe signatures of soliton collisions and randomization which persist over long timescales. This work leverages some of the unique advantages of ultracold atom systems to provide a dual experimental and numerical platform for studies of soliton gases and other nonlinear hydrodynamic phenomena.
*We gratefully acknowledge funding from the NSF under grants PHY-1912540 and PHY-2207588.
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