Resonator, oscillator, and quantum computer
AssigneeNEC Corporation
InventorsTomohiro YAMAJI, Tsuyoshi Yamamoto
Life of this patent
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Abstract
A resonator, an oscillator, and a quantum computer capable of preventing oscillation conditions for generating a parametric oscillation from becoming complicated are provided. A resonator includes at least one loop circuit in which a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape, in which critical current values of the first and second Josephson junctions are different from each other.
Claims13
A resonator comprising at least one loop circuit in which a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape, wherein
- critical current values of the first and second Josephson junctions are different from each other.
An oscillator comprising:
- a resonator comprising at least one loop circuit in which:
- a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape;
- and critical current values of the first and second Josephson junctions are different from each other;
- and
- a magnetic field generation unit configured to apply a magnetic field to the loop circuit.
A quantum computer comprising, as a unit structure, four oscillators and a coupling circuit, wherein
- each of the oscillators comprises:
- a resonator comprising at least one loop circuit in which:
- a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction are connected in a ring shape;
- and critical current values of the first and second Josephson junctions are different from each other;
- and
- a magnetic field generation unit configured to apply a magnetic field to the loop circuit, and
- the coupling circuit couples resonators of the four oscillators.
Dependencies are inferred from the claim text.