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|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.|
|Electronic Publication Date:||Oct-2015|
|Citation:||Bronn, NT, Liu, Y, Hertzberg, JB, Córcoles, AD, Houck, AA, Gambetta, JM, Chow, JM. (2015). Broadband filters for abatement of spontaneous emission in circuit quantum electrodynamics. Applied Physics Letters, 107 (10.1063/1.4934867|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Applied Physics Letters|
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