Controlling quantum systems with modulated electron beams

2020/04/30 by Dennis Rätzel, Daniel Hartley, Osip Schwartz +1
Computer Science · Physics and Astronomy · #Beam (structure) #Beam splitter #Coherent control #Electron #Laser-Matter Interactions and Applications #Matter wave #Quantum #Quantum Information and Cryptography #Quantum control #Quantum optics and atomic interactions #Quantum sensor #Quantum system #physics.atom-ph #quant-ph

paper · pdf · doi:10.1103/physrevresearch.3.023247

published as Phys. Rev. Research 3, 023247 (2021)

openalex created_date 2020/05/01 · openalex publication_date 2021/06/28 · arxiv created 2021/07/13 · arxiv updated 2021/07/14 · openalex updated_date 2026/08/05

Abstract

Coherent control of quantum transitions—indispensable in quantum technology—generally relies on the interaction of quantum systems with electromagnetic radiation. Here, we theoretically demonstrate that the nonradiative electromagnetic near field of a temporally modulated free-space electron beam can be utilized for coherent control of quantum systems. We show that such manipulation can be performed with only classical control over the electron beam itself and is readily realizable with current technology. This approach may provide a pathway toward spectrally selective quantum control with nanoscale spatial resolution, harnessing the small de Broglie wavelength of electrons.

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