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Trapped Ion Quantum Computing
Superconducting Qubits
Broadband Filters for Abatement of Spontaneous Emission in Circuit Quantum Electrodynamics
arXiv
Authors: Nicholas T. Bronn, Yanbing Liu, Jared B. Hertzberg, Antonio D. Córcoles, Andrew A. Houck, Jay M. Gambetta, Jerry M. Chow
Year
2015
Paper ID
7924
Status
Preprint
Abstract Read
~2 min
Abstract Words
79
Citations
N/A
Abstract
The ability to perform fast, high-fidelity readout of quantum bits (qubits) is essential to the goal of building a quantum computer. However, coupling a fast measurement channel to a superconducting qubit typically also speeds up its relaxation via spontaneous emission. Here we use impedance engineering to design a filter by which photons may easily leave the resonator at the cavity frequency but not at the qubit frequency. We implement this broadband filter in both an on-chip and off-chip configuration.
Why This Paper Matters
- This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
- It adds a 2015 reference point for readers tracking recent quantum research.
- The ability to perform fast, high-fidelity readout of quantum bits (qubits) is essential to the goal of building a quantum computer.
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