Microwave Emission from Hybridized States in a Semiconductor Charge Qubit

A. Stockklauser, V. F. Maisi, J. Basset, K. Cujia, C. Reichl, W. Wegscheider, T. Ihn, A. Wallraff, and K. Ensslin
Phys. Rev. Lett. 115, 046802 – Published 24 July 2015
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Abstract

We explore the microwave radiation emitted from a biased double quantum dot due to the inelastic tunneling of single charges. Radiation is detected over a broad range of detuning configurations between the dot energy levels, with pronounced maxima occurring in resonance with a capacitively coupled transmission line resonator. The power emitted for forward and reverse resonant detuning is found to be in good agreement with a rate equation model, which considers the hybridization of the individual dot charge states.

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  • Received 20 April 2015

DOI:https://doi.org/10.1103/PhysRevLett.115.046802

© 2015 American Physical Society

Authors & Affiliations

A. Stockklauser*, V. F. Maisi, J. Basset, K. Cujia, C. Reichl, W. Wegscheider, T. Ihn, A. Wallraff, and K. Ensslin

  • Department of Physics, ETH Zürich, CH-8093 Zurich, Switzerland

  • *anna.stockklauser@phys.ethz.ch
  • julien.basset@u-psud.fr Present address: Laboratoire de Physique des Solides, Université Paris-Sud, CNRS, UMR 8502, F-91405 Orsay Cedex, France.

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Vol. 115, Iss. 4 — 24 July 2015

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