期刊
PHYSICAL REVIEW LETTERS
卷 121, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.054801
关键词
-
资金
- EU Accelerator Research and Innovation for European Science and Society (EU ARIES) [730871 (H2020-INFRAIA-2016-1)]
- FCT (Portugal) [SFRH/IF/01635/2015]
- European Research Council under the European Union's Horizon 2020 research and innovation programme (ERC) [694596]
We propose a twisted plasma accelerator capable of generating relativistic electron vortex beams with helical current profiles. The angular momentum of these vortex bunches is quantized, dominates their transverse motion, and results in spiraling particle trajectories around the twisted wakefield. We focus on a laser wakefield acceleration scenario, driven by a laser beam with a helical spatiotemporal intensity profile, also known as a light spring. We find that these light springs can rotate as they excite the twisted plasma wakefield, providing a new mechanism to control the twisted wakefield phase velocity and enhance energy gain and trapping efficiency beyond planar wakefields.
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