Electron-photon pair states generated at a silicon nitride integrated photonics microresonator

Armin Feist; Guanhao Huang; Germaine Arend; Yujia Yang; Jan-Wilke Henke; Arslan Sajid Raja; F. Jasmin Kappert; Rui Ning Wang; Hugo Lourenço-Martins; Zheru Qiu; Junqiu Liu; Ofer Kfir; Tobias J. Kippenberg; Claus Ropers

doi:10.1117/12.2645997

8 March 2023 Electron-photon pair states generated at a silicon nitride integrated photonics microresonator

Armin Feist, Guanhao Huang, Germaine Arend, Yujia Yang, Jan-Wilke Henke, Arslan Sajid Raja, F. Jasmin Kappert, Rui Ning Wang, Hugo Lourenço-Martins, Zheru Qiu, Junqiu Liu, Ofer Kfir, Tobias J. Kippenberg, Claus Ropers

Author Affiliations +

Proceedings Volume 12446, Quantum Computing, Communication, and Simulation III; 124460R (2023) https://doi.org/10.1117/12.2645997
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

Advancing quantum information and communication requires the control of quantum correlations in complementary degrees of freedom. In this work, we generate electron-photon pair states via inelastic scattering of free electrons at a high-Q photonic-chip-based microresonator. In analogy to spontaneous parametric down-conversion, time- and energy-resolved detection of both particles enables various heralding schemes. We experimentally characterize this new heralded source of single photons and free electrons. Ultimately, these results underpin the recent progress in free-electron quantum optics, promising electron-photon entanglement, tailored photon Fock states, and quantum-enhanced electron imaging.

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Armin Feist, Guanhao Huang, Germaine Arend, Yujia Yang, Jan-Wilke Henke, Arslan Sajid Raja, F. Jasmin Kappert, Rui Ning Wang, Hugo Lourenço-Martins, Zheru Qiu, Junqiu Liu, Ofer Kfir, Tobias J. Kippenberg, and Claus Ropers "Electron-photon pair states generated at a silicon nitride integrated photonics microresonator", Proc. SPIE 12446, Quantum Computing, Communication, and Simulation III, 124460R (8 March 2023); https://doi.org/10.1117/12.2645997

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