Two-photon lasing by a superconducting qubit
arXiv:1501.01543 · doi:10.1103/PhysRevB.91.104516
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.
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- Signal amplification in a qubit-resonator system
- Controlling the energy gap of a tunable two-level system by ac drive
- Overcoming photon blockade in circuit QED single-atom maser with engineered metastability and strong coupling
- Robustness of the Floquet-assisted superradiant phase and possible laser operation
- Quantum Resonator as a Directional Quantum Emitter