Two-photon lasing by a superconducting qubit

P. Neilinger; M. Rehák; M. Grajcar; G. Oelsner; U. Hübner; E. Il'ichev

doi:10.1103/PhysRevB.91.104516

Two-photon lasing by a superconducting qubit

Superconductivity 2015-03-25 v1 Mesoscale and Nanoscale Physics Quantum Physics

Authors: P. Neilinger , M. Rehák , M. Grajcar , G. Oelsner , U. Hübner , E. Il'ichev

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Abstract

We study the response of a magnetic-field-driven superconducting qubit strongly coupled to a superconducting coplanar waveguide resonator. We observed a strong amplification/damping of a probing signal at different resonance points corresponding to a one and two-photon emission/absorption. The sign of the detuning between the qubit frequency and the probe determines whether amplification or damping is observed. The larger blue detuned driving leads to two-photon lasing while the larger red detuning cools the resonator. Our experimental results are in good agreement with the theoretical model of qubit lasing and cooling at the Rabi frequency.

Keywords

circuit quantum electrodynamics microwave resonators quantum optics

Cite

@article{arxiv.1501.01543,
  title  = {Two-photon lasing by a superconducting qubit},
  author = {P. Neilinger and M. Rehák and M. Grajcar and G. Oelsner and U. Hübner and E. Il'ichev},
  journal= {arXiv preprint arXiv:1501.01543},
  year   = {2015}
}

Two-photon lasing by a superconducting qubit

Abstract

Keywords

Cite

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