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Single artificial-atom lasing

Author

Listed:
  • O. Astafiev

    (NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
    The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan)

  • K. Inomata

    (The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan)

  • A. O. Niskanen

    (CREST-JST, Kawaguchi, Saitama 332-0012, Japan
    VTT Technical Research Center of Finland, Sensors, POB 1000, 02044 VTT, Espoo, Finland)

  • T. Yamamoto

    (NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
    The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan
    CREST-JST, Kawaguchi, Saitama 332-0012, Japan)

  • Yu. A. Pashkin

    (NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
    The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan)

  • Y. Nakamura

    (NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
    The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan
    CREST-JST, Kawaguchi, Saitama 332-0012, Japan)

  • J. S. Tsai

    (NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
    The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan
    CREST-JST, Kawaguchi, Saitama 332-0012, Japan)

Abstract

A lasing effect with a single artificial atom (a Josephson-junction charge qubit) that is embedded in a superconducting resonator is demonstrated, making use of the property that such artificial atoms are strongly and controllably coupled to resonator modes. The device is essentially different from existing lasers and masers; one and the same artificial atom excited by current injection produces many photons.

Suggested Citation

  • O. Astafiev & K. Inomata & A. O. Niskanen & T. Yamamoto & Yu. A. Pashkin & Y. Nakamura & J. S. Tsai, 2007. "Single artificial-atom lasing," Nature, Nature, vol. 449(7162), pages 588-590, October.
    • Handle: RePEc:nat:nature:v:449:y:2007:i:7162:d:10.1038_nature06141
    DOI: 10.1038/nature06141
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