© Shunsuke Ota
A surface acoustic wave (SAW) is a sound wave that propagates near the surface of a material. In piezoelectric materials, SAWs are accompanied by electric potential modulation. In this research, we transfer a single electron while loading it on the moving electric potential of a SAW. The advantage of this method for performing electron quantum optics experiments is that single-electron sources and detectors have already been demonstrated with high efficiency (fidelity above 99 %). As a result, we can investigate the properties of single flying electrons while measuring the event of each flying electron. We study the dynamics of flying electrons propagating within SAWs and aim to realize quantum circuits based on them.
"Coulomb-mediated antibunching of an electron pair surfing on sound",
Junliang Wang, Hermann Edlbauer, Aymeric Richard, Shunsuke Ota, Wanki Park, Jeongmin Shim, Arne Ludwig, Andreas D. Wieck, Heung-Sun Sim, Matias Urdampilleta, Tristan Meunier, Tetsuo Kodera, Nobu-Hisa Kaneko, Hermann Sellier, Xavier Waintal, Shintaro Takada, and Christopher Bäuerle,
Nat. Nanotechnol. 18, 721-726 (2023). (arXiv)
"Generation of a Single-Cycle Acoustic Pulse: A Scalable Solution for Transport in Single-Electron Circuits",
Junliang Wang, Shunsuke Ota, Hermann Edlbauer, Baptiste Jadot, Pierre-André Mortemousque, Aymeric Richard, Yuma Okazaki, Shuji Nakamura, Arne Ludwig, Andreas D. Wieck, Matias Urdampilleta, Tristan Meunier, Tetsuo Kodera, Nobu-Hisa Kaneko, Shintaro Takada, and Christopher Bäuerle,
Phys. Rev. X 119, 031035 (2022). (arXiv)
"In-flight distribution of an electron within a surface acoustic wave",
Hermann Edlbauer, Junliang Wang, Shunsuke Ota, Aymeric Richard, Baptiste Jadot, Pierre-André Mortemousque, Yuma Okazaki, Shuji Nakamura, Tetsuo Kodera, Nobu-Hisa Kaneko, Arne Ludwig, Andreas D. Wieck, Matias Urdampilleta, Tristan Meunier, Christopher Bäuerle, and Shintaro Takada,
Appl. Phys. Lett. 119, 114004 (2021). (arXiv)
"Sound-driven single-electron transfer in a circuit of coupled quantum rails",
Shintaro Takada, Hermann Edlbauer, Hugo V. Lepage, Junliang Wang, Pierre-André Mortemousque, Giorgos Georgiou, Crispin H.W. Barnes, Christopher J.B. Ford, Mingyun Yuan, Paulo V. Santos, Xavier Waintal, Arne Ludwig, Andreas D. Wieck, Matias Urdampilleta, Tristan Meunier, and Christopher Bäuerle,
Nat. Commun. 10, 4557 (2019). (arXiv)
"Electrons surfing on a sound wave as a platform for quantum optics with flying electrons",
Sylvain Hermelin, Shintaro Takada, Michihisa Yamamoto, Seigo Tarucha, Andreas D. Wieck, Laurent Saminadayar, Christopher Bäuerle, and Tristan Meunier,