Pulse calibration and non-adiabatic control of solid-state artificial atoms
arXiv:0812.4670 · doi:10.1103/PhysRevB.80.220506
Abstract
Transitions in an artificial atom, driven non-adiabatically through an energy-level avoided crossing, can be controlled by carefully engineering the driving protocol. We have driven a superconducting persistent-current qubit with a large-amplitude, radio-frequency field. By applying a bi-harmonic waveform generated by a digital source, we demonstrate a mapping between the amplitude and phase of the harmonics produced at the source and those received by the device. This allows us to image the actual waveform at the device. This information is used to engineer a desired time dependence, as confirmed by detailed comparison with simulation.
4.1 pages, 3 figures
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- Quantum systems under frequency modulation
- Improving quantum gate fidelities by using a qubit to measure microwave pulse distortions
- High-Fidelity Single-Qubit Gates for Two-Electron Spin Qubits in GaAs
- Universal non-adiabatic control of small-gap superconducting qubits
- Two-level system as a quantum sensor of absolute power
- In situ characterization of qubit control lines: a qubit as a vector network analyzer
- Amplitude and frequency sensing of microwave fields with a superconducting transmon qudit
- Time-Reversal Symmetry and Universal Conductance Fluctuations in a Driven Two-Level System
- Amplitude and phase effects in Josephson qubits driven by a biharmonic electromagnetic field
- Dynamic transition in Landau-Zener-Stückelberg interferometry of dissipative systems: the case of the flux qubit
- Landau-Zener-Stückelberg Spectroscopy of a Superconducting Flux Qubit
- Mesoscopic fluctuations in biharmonically driven flux qubits
- Correcting on-chip distortion of control pulses with silicon spin qubits