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US 10,833,239 B2Granted
Qubit network non-volatile identification
AssigneeInternational Business Machines Corporation
InventorsMarkus Brink, Jared B. Hertzberg, Sami Rosenblatt
Life of this patent
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Abstract
A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.
Claims11
A method of identifying a superconducting chip comprising:
- receiving resonant frequencies associated with the superconducting chip;
- and
- using the resonant frequencies to identify the superconducting chip based on the resonant frequencies being in different frequency bands, one of the different frequency bands results from having a shorted tunnel barrier in a Josephson junction.
A method of identifying a superconducting chip comprising:
- receiving resonant frequencies associated with the superconducting chip;
- and
- using the resonant frequencies to identify the superconducting chip based on the resonant frequencies being in two different frequency bands, wherein:
- the superconducting chip comprises resonant units having the resonant frequencies, the resonant units comprising Josephson junctions;
- and
- one or more of the Josephson junctions are configured to have a shorted tunnel barrier.
3 more elements
Dependencies are inferred from the claim text.