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Clock-controlled emission of single-electron wavepackets in a solid-state circuit.

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 (2013) Clock-controlled emission of single-electron wavepackets in a solid-state circuit. Phys. Rev. Lett., 111 (21). 216807

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Abstract

We demonstrate the transmission of single electron wavepackets from a clock-controlled source through an empty high-energy edge channel in a two-dimensional electron system. A quantum dot source is loaded with single electrons which are then emitted with high kinetic energy (150 meV). We find at high magnetic field that these electron can be transported over several microns without inelastic electron-electron or electron-phonon scattering. Using a time-resolved spectroscopic technique, we measure the electron energy and wavepacket size at picosecond time scales. We also show how our technique can be used to switch individual electrons into different paths.

Item Type: Article
Keywords: single electron, wavepacket, quantum dot, phonon
Subjects: Quantum Phenomena
Quantum Phenomena > Quantum Information Processing and Communication
Identification number/DOI: 10.1103/PhysRevLett.111.216807
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/6020

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