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100 1 _ |a Wu, Yitong
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245 _ _ |a Polarized electron-beam acceleration driven by vortex laser pulses
260 _ _ |a [London]
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520 _ _ |a We propose a new approach based on an all-optical set-up for generating relativistic polarized electron beams via vortex Laguerre-Gaussian (LG) laser-driven wakefield acceleration. Using a pre-polarized gas target, we find that the topology of the vortex wakefield resolves the depolarization issue of the injected electrons. In full three-dimensional particle-in-cell simulations, incorporating the spin dynamics via the Thomas-Bargmann Michel Telegdi equation, the LG laser preserves the electron spin polarization by more than 80% while assuring efficient electron injection. The method releases the limit on beam flux for polarized electron acceleration and promises more than an order of magnitude boost in peak flux, as compared to Gaussian beams. These results suggest a promising table-top method to produce energetic polarized electron beams.
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700 1 _ |a Ji, Liangliang
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700 1 _ |a Geng, Xuesong
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700 1 _ |a Yu, Qin
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700 1 _ |a Wang, Nengwen
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700 1 _ |a Feng, Bo
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700 1 _ |a Guo, Zhao
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700 1 _ |a Wang, Weiqing
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700 1 _ |a Qin, Chengyu
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700 1 _ |a Yan, Xue
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700 1 _ |a Zhang, Lingang
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700 1 _ |a Thomas, Johannes
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700 1 _ |a Hützen, Anna
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700 1 _ |a Büscher, Markus
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700 1 _ |a Rakitzis, T Peter
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700 1 _ |a Pukhov, Alexander
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700 1 _ |a Shen, Baifei
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700 1 _ |a Li, Ruxin
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773 _ _ |a 10.1088/1367-2630/ab2fd7
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