Quantum limited josephson amplifier with spatial separation between spectrally degenerate signal and idler modes
AssigneeInternational Business Machines Corporation
InventorBaleegh Abdo
Life of this patent
Estimating the term…
Abstract
A technique relates to a quantum-limited microwave amplifier. A Josephson ring modulator (JRM) is connected to a first lumped-element resonator. The first lumped-element resonator includes one or more first lumped elements. A second lumped-element resonator is connected to the JRM, and the second lumped-element resonator includes one or more second lumped elements. The JRM, the first lumped-element resonator, and the second-lumped element resonator form a Josephson parametric converter (JPC). The one or more first lumped elements and the one or more second lumped elements have a value that is the same, thereby configuring the JPC to be spectrally degenerate.
Claims20
A quantum-limited microwave amplifier, the amplifier comprising:
- a Josephson ring modulator (JRM);
- a first lumped-element resonator connected to the JRM, the first lumped-element resonator including one or more first lumped elements;
- and
- a second lumped-element resonator connected to the JRM, the second lumped-element resonator including one or more second lumped elements;
- wherein the JRM, the first lumped-element resonator, and the second-lumped element resonator form a Josephson parametric converter (JPC);
- wherein the one or more first lumped elements and the one or more second lumped elements have a value that is a same, thereby configuring the JPC to be spectrally degenerate.
A method of configuring a quantum-limited microwave amplifier, the method comprising:
- providing a JRM;
- providing a first lumped-element resonator connected to the JRM, the first lumped-element resonator including one or more first lumped elements;
- and
- providing a second lumped-element resonator connected to the JRM, the second lumped-element resonator including one or more second lumped elements;
- wherein the JRM, the first lumped-element resonator, and the second-lumped element resonator form a JPC;
- wherein the one or more first lumped elements and the one or more second lumped elements have a value that is a same, thereby configuring the JPC to be spectrally degenerate.
Dependencies are inferred from the claim text.