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Free-electron qubits and maximum-contrast attosecond pulses via temporal Talbot revivals

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2021

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Physical Review Research. American Physical Society. 2021, 3(4), 043033. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.3.043033

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We use laser light and a transmission electron microscope to modulate a free-electron beam into high-contrast electron pulses and free-electron qubits by using temporal Talbot revivals. At large enough propagation distances, the discrete energy sidebands from a laser modulation acquire special phases and group delays that optimize or cancel their time-domain interference, producing a revival or alternatively a pulse train at close to 100% modulation depth. A sequence of two laser interactions at an optimized propagation distance allows us to coherently control adjacent energy sidebands in amplitude and phase in the way of a qubit. The use of continuous-wave laser light provides these modulations at almost the full brightness of the beam source. Free electrons under large-distance laser control are therefore a promising tool for ultrafast material characterizations or investigations of free-electron quantum mechanics.

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ISO 690TSAREV, Maxim V., Andrey RYABOV, Peter BAUM, 2021. Free-electron qubits and maximum-contrast attosecond pulses via temporal Talbot revivals. In: Physical Review Research. American Physical Society. 2021, 3(4), 043033. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.3.043033
BibTex
@article{Tsarev2021-10-14Freee-55663,
  year={2021},
  doi={10.1103/PhysRevResearch.3.043033},
  title={Free-electron qubits and maximum-contrast attosecond pulses via temporal Talbot revivals},
  number={4},
  volume={3},
  journal={Physical Review Research},
  author={Tsarev, Maxim V. and Ryabov, Andrey and Baum, Peter},
  note={Article Number: 043033}
}
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