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US 10,404,214 B2Granted
Techniques for producing quantum amplifiers and related systems and methods
AssigneeYale University
InventorsLászló J. Szöcs, Anirudh Narla, Michael Hatridge, Katrina Sliwa, Shyam Shankar, Luigi Frunzio, Michel Devoret
Life of this patent
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Abstract
According to some aspects, a quantum circuit is provided including a plurality of non-linear circuit elements coupled together in series and in parallel, such that at least two of the circuit elements are coupled together in series and at least two of the circuit elements are coupled together in parallel, wherein the quantum circuit is configured to act as an amplifier.
Claims17
A quantum circuit, comprising:
- a plurality of Josephson junctions coupled together in series and in parallel, such that at least two of the Josephson junctions are coupled together in series and at least two of the Josephson junctions are coupled together in parallel,
- wherein the quantum circuit is configured to receive a plurality of pump signal components, each pump signal component parametrically adjusting a Josephson junction gain in such a manner that the quantum circuit acts as an amplifier.
A quantum circuit, comprising:
- a network of a plurality of sub-circuits coupled in parallel, wherein each sub-circuit includes a plurality of non-linear circuit elements coupled in series,
- wherein the network is configured to receive an input, across the plurality of sub-circuits, the input comprising a signal to be amplified and a plurality of pump signal components, each pump signal component parametrically adjusting a non-linear circuit element gain in such a manner that the network acts as an amplifier.
Dependencies are inferred from the claim text.