Time-resolved Scattering of a Single Photon by a Single Atom
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Scattering of light by matter has been studied extensively in the past. Yet, the most fundamental process, the scattering of a single photon by a single atom, is largely unexplored. One prominent prediction of quantum optics is the deterministic absorption of a travelling photon by a single atom, provided the photon waveform matches spatially and temporally the time-reversed version of a spontaneously emitted photon. Here we experimentally address this prediction and investigate the influence of the photon's temporal profile on the scattering dynamics using a single trapped atom and heralded single photons. In a time-resolved measurement of atomic excitation we find a 56(11)% increase of the peak excitation by photons with an exponentially rising profile compared with a decaying one. However, the overall scattering probability remains unchanged within the experimental uncertainties. Our results demonstrate that envelope tailoring of single photons enables precise control of the photon-atom interaction.
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Bianchet L, Alves N, Zarraoa L, Bruno N, Mitchell M Open Res Eur. 2023; 1:102.
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Photon bound state dynamics from a single artificial atom.
Tomm N, Mahmoodian S, Antoniadis N, Schott R, Valentin S, Wieck A Nat Phys. 2023; 19(6):857-862.
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Deterministic Loading of Microwaves onto an Artificial Atom Using a Time-Reversed Waveform.
Lin W, Lu Y, Wen P, Cheng Y, Lee C, Lin K Nano Lett. 2022; 22(20):8137-8142.
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Extreme Concentration and Nanoscale Interaction of Light.
Leuchs G, Andrianov A, Anashkina E, Manshina A, Banzer P, Sondermann M ACS Photonics. 2022; 9(6):1842-1851.
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