Radio-Frequency Method for Investigation of Quantum Properties of Superconducting Structures
arXiv:cond-mat/0402559 · doi:10.1063/1.1789933
Abstract
We implement the impedance measurement technique (IMT) for characterization of interferometer-type superconducting qubits. In the framework of this method, the interferometer loop is inductively coupled to a high-quality tank circuit. We show that the IMT is a powerful tool to study a response of externally controlled two-level system to different types of excitations. Conclusive information about qubits is obtained from the read-out of the tank properties.
10 pages, 10 figures;to be published in Fizika Nizkikh Temperatur (Low Temperature Physics); v3: minor polishing; final
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- Multiphoton transitions between energy levels in a phase-biased Cooper-pair box
- Dynamic behaviour of Josephson-junction qubits: crossover between Rabi oscillations and Landau-Zener transitions
- Multiphoton transitions in Josephson-junction qubits (Review Article)
- Resonant excitations of single and two-qubit systems coupled to a tank circuit
- Quantum behaviour of a flux qubit coupled to a resonator
- Quantum electromechanics: Quantum tunneling near resonance and qubits from buckling nanobars
- Cool for Cats
- Two-photon lasing by a superconducting qubit
- Impedance measurement technique for quantum systems
- Adiabatic quantum computation with flux qubits, first experimental results
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- Simulating long-distance entanglement in quantum spin chains by superconducting flux qubits
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- Noise-induced quantum coherence and persistent Rabi oscillations in a Josephson flux qubit
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- Reflection-enhanced gain in traveling-wave parametric amplifiers
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- Broadband Sample Holder for Microwave Spectroscopy of Superconducting Qubits
- Phase diagram of the resistive state of the narrow superconducting channel in the voltage-driven regime
- Controlling the energy gap of a tunable two-level system by ac drive
- Magnetic flux noise in the three Josephson junctions superconducting ring
- State-dependent impedance of a strongly coupled oscillator-qubit system