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US 2020/0287117 A1Published application
Scalable quantum devices with vertical coaxial resonators
AssigneeInternational Business Machines Corporation
InventorsNaoki Kanazawa, Masao Tokunari
Life of this patent
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Abstract
Quantum computing devices include a chip carrier that has a conductive carrier body and one or more readout resonators in the conductive carrier body. Each readout resonator has a center conductor and a coaxial dielectric layer. A quantum chip is on the chip carrier and includes one or more qubits positioned over respective readout resonators.
Claims24
A quantum computing device, comprising:
- a chip carrier that includes:
- a conductive carrier body;
- and
- one or more readout resonators in the conductive carrier body, each readout resonator having a hollow center conductor and a coaxial dielectric layer;
- and
- a quantum chip on the chip carrier that includes one or more qubits positioned over respective readout resonators.
3 more elements
(canceled)
A quantum computing device, comprising:
- a chip carrier that includes:
- a conductive carrier body;
- and
- a plurality of readout resonators in the conductive carrier body, each readout resonator having a hollow superconducting center conductor and a coaxial dielectric layer;
- and
- a quantum chip on the chip carrier, with an air gap between the chip carrier and the quantum chip, that includes a plurality of transmon qubits positioned over respective readout resonators and one or more quantum buses, each positioned between respective pairs of qubits, wherein the one or more qubits each include an island electrode, a reservoir electrode, and a Josephson junction between the island electrode and the reservoir electrode.
3 more elements
(canceled)
(canceled)
18-20. (canceled)
A quantum computing device, comprising:
- a chip carrier that includes:
- a conductive carrier body;
- and
- one or more readout resonators in the conductive carrier body, each readout resonator having a hollow center conductor and a coaxial dielectric layer;
- and
- a quantum chip on the chip carrier that includes one or more qubits positioned over respective readout resonators, wherein each of the one or more qubits is a transmon that includes an island electrode, a reservoir electrode, and a Josephson junction between the island electrode and the reservoir electrode.
3 more elements
Dependencies are inferred from the claim text.