Speaker
Description
This work presents new insights into the formation and propagation of solitons in the University of Maryland Electron Ring (UMER), using a combination of theory, Particle-In-Cell (PIC) simulation, and experimental validation. Soliton dynamics in the electron beam are modeled via the Korteweg–de Vries (KdV) equation, capturing the balance between nonlinearity and dispersion inherent in space-charge-dominated beams confined within a conducting beam pipe.
We report the first-ever characterization of dark (negative) solitons in an accelerator, emerging from negative perturbations in a regime of negative dispersion. We also report observing oscillatory wave structures from the KdV equation for the first time in an accelerator, arising from negative beam perturbations in a positive dispersion regime. These results provide a unique platform for both exploring beam manipulation using soliton-based mechanisms, and for exploring fundamental nonlinear wave dynamics relevant to other complex environments such as space plasmas.
Funding Agency
DOE HEP grants: DE-SC0010301 and DE-SC0022009
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