Multimode josephson parametric converter: coupling josephson ring modlator to metamaterial
AssigneeInternational Business Machines Corporation
InventorBaleegh Abdo
Life of this patent
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Abstract
A technique relates to operating a multimode josephson parametric converter as a multimode quantum limited amplifier. The multimode. Josephson parametric converter receives multiple quantum signals in parallel at different resonance frequencies. The multimode Josephson parametric converter amplifies simultaneously the multiple quantum signals, according to pump signals applied to the multimode Josephson parametric converter. The multiple quantum signals having been amplified at the different resonance frequencies are reflected, according to the pump signals.
Claims20
A method of generating a bell state using photons as quantum bits, the method comprising:
- providing a first multimode resonator and a second multimode resonator both connected to a dispersive nonlinear medium, wherein the first multimode resonator is a first left-handed transmission line and the second multimode resonator is a second left-handed transmission line, wherein resonance modes are identical in the first and second multimode resonators;
- receiving, by the second multimode resonator, a pump signal at a frequency sum, the frequency sum is a summation of a resonance frequency of the resonance modes plus another resonance frequency of the resonance modes;
- and
- in response to receiving the pump signal at the frequency sum, generating, by the dispersive nonlinear medium, a first photon and a second photon in a superposition of location states, the superposition of the location states for the first and second photons are related to being in the first multimode resonator and the second multimode resonator.
Dependencies are inferred from the claim text.