Publikation: Structured electrons with chiral mass and charge
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2024
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Science. American Association for the Advancement of Science (AAAS). 2024, 385(6705), S. 183-187. ISSN 0036-8075. eISSN 1095-9203. Verfügbar unter: doi: 10.1126/science.adp9143
Zusammenfassung
Chirality is a phenomenon with widespread relevance in fundamental physics, material science, chemistry, optics, and spectroscopy. In this work, we show that a free electron can be converted by the field cycles of laser light into a right-handed or left-handed coil of mass and charge. In contrast to phase-vortex beams, our electrons maintained a flat de Broglie wave but obtained their chirality from the shape of their expectation value in space and time. Measurements of wave function densities by attosecond gating revealed the three-dimensional shape of coils and double coils with left-handed or right-handed pitch. Engineered elementary particles with such or related chiral geometries should be useful for applications in chiral sensing, free-electron quantum optics, particle physics or electron microscopy.
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FANG, Yiqi, Joel KUTTRUFF, David NABBEN, Peter BAUM, 2024. Structured electrons with chiral mass and charge. In: Science. American Association for the Advancement of Science (AAAS). 2024, 385(6705), S. 183-187. ISSN 0036-8075. eISSN 1095-9203. Verfügbar unter: doi: 10.1126/science.adp9143BibTex
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year={2024},
doi={10.1126/science.adp9143},
title={Structured electrons with chiral mass and charge},
number={6705},
volume={385},
issn={0036-8075},
journal={Science},
pages={183--187},
author={Fang, Yiqi and Kuttruff, Joel and Nabben, David and Baum, Peter}
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<dcterms:abstract>Chirality is a phenomenon with widespread relevance in fundamental physics, material science, chemistry, optics, and spectroscopy. In this work, we show that a free electron can be converted by the field cycles of laser light into a right-handed or left-handed coil of mass and charge. In contrast to phase-vortex beams, our electrons maintained a flat de Broglie wave but obtained their chirality from the shape of their expectation value in space and time. Measurements of wave function densities by attosecond gating revealed the three-dimensional shape of coils and double coils with left-handed or right-handed pitch. Engineered elementary particles with such or related chiral geometries should be useful for applications in chiral sensing, free-electron quantum optics, particle physics or electron microscopy.</dcterms:abstract>
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