Clock-controlled emission of single-electron wave packets in a solid-state circuit
We demonstrate the energy- and time-resolved detection of single-electron wave packets from a clock-controlled source transmitted through a high-energy quantum Hall edge channel. A quantum dot source is loaded with single electrons which are then emitted ~150 meV above the Fermi energy. The energy s...
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| Veröffentlicht in: | Physical review letters 2013-11, Vol.111 (21), p.216807-216807, Article 216807 |
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| container_end_page | 216807 |
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| container_issue | 21 |
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| container_title | Physical review letters |
| container_volume | 111 |
| creator | Fletcher, J D See, P Howe, H Pepper, M Giblin, S P Griffiths, J P Jones, G A C Farrer, I Ritchie, D A Janssen, T J B M Kataoka, M |
| description | We demonstrate the energy- and time-resolved detection of single-electron wave packets from a clock-controlled source transmitted through a high-energy quantum Hall edge channel. A quantum dot source is loaded with single electrons which are then emitted ~150 meV above the Fermi energy. The energy spectroscopy of emitted electrons indicates that at high magnetic field these electrons can be transported over several microns without inelastic electron-electron or electron-phonon scattering. Using a time-resolved spectroscopic technique, we deduce the wave packet size at picosecond resolution. We also show how this technique can be used to switch individual electrons into different electron waveguides (edge channels). |
| doi_str_mv | 10.1103/physrevlett.111.216807 |
| format | Article |
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| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| title | Clock-controlled emission of single-electron wave packets in a solid-state circuit |
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