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Microwave Guiding of Electrons on a Chip

J. Hoffrogge, R. Fröhlich, M. A. Kasevich, and P. Hommelhoff
Phys. Rev. Lett. 106, 193001 – Published 9 May 2011
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We demonstrate the transverse confinement and guiding of a low energy electron beam of several electron volts in a miniaturized linear quadrupole guide. The guiding potential is generated by applying a microwave voltage to electrodes fabricated on a planar substrate, which allows the potential landscape to be precisely shaped on a microscopic scale. We realize transverse trapping frequencies of 100 MHz and guide electrons along a circular section of 37 mm length. A detailed characterization of the guiding properties in terms of potential depth and dynamic stability is given. This new technique of electron guiding promises various applications in guided matter-wave experiments such as electron interferometry.

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  • Received 2 March 2011


© 2011 American Physical Society


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Integrated circuits for matter waves

Published 9 May 2011

Electrons join the growing technology to build integrated quantum circuits that guide matter waves on a chip.

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Authors & Affiliations

J. Hoffrogge1, R. Fröhlich1, M. A. Kasevich2, and P. Hommelhoff1,*

  • 1Max Planck Research Group “Ultrafast Quantum Optics,” Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching bei München, Germany
  • 2Department of Physics, Stanford University, Stanford, California 94305, USA

  • *peter.hommelhoff@mpq.mpg.de

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Vol. 106, Iss. 19 — 13 May 2011

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