Quantum Sensing of Time-Dependent Electromagnetic Fields with Single-Electron Excitations
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en
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34
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Physical Review X, Volume 15, issue 3, pp. 1-34
Abstract
In this study, we investigate the potential of electronic interferometers for probing the quantum state of electromagnetic radiation on a chip at subnanosecond timescales. We propose to use single-electron excitations propagating within an electronic Mach-Zehnder interferometer in the Aharonov-Bohm-dominated regime. We discuss how information about the quantum state of the electromagnetic radiation is encoded into the interference contribution to the average outgoing electrical current. By investigating squeezed radiation and single-edge magnetoplasmons probed by leviton pulses in a realistic setup, we show that single-electron interferometers have the potential to probe quantum radiation in the time domain with subnanosecond to picosecond time resolution. Our research could have significant implications for probing the fundamental properties of light in the microwave to terahertz domains at extremely short timescales.Description
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Souquet-Basiege, H, Roussel, B, Rebora, G, Menard, G, Safi, I, Feve, G & Degiovanni, P 2025, 'Quantum Sensing of Time-Dependent Electromagnetic Fields with Single-Electron Excitations', Physical Review X, vol. 15, no. 3, 031043, pp. 1-34. https://doi.org/10.1103/1nfc-stxp