Driving dark modes to facilitate entanglement
AssigneeInternational Business Machines Corporation
InventorsAaron Finck, John Blair, April Carniol
Life of this patent
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Abstract
Systems and techniques that facilitate entanglement via driving dark modes are provided. In various embodiments, a method can comprise accessing a first multi-mode qubit and a second multi-mode qubit. In various cases, the first multi-mode qubit can be coupled to the second multi-mode qubit by a mode-selective coupler. In various aspects, the method can further comprise exciting a dark mode of the first multi-mode qubit. In various cases, the exciting the dark mode can entangle the first multi-mode qubit with the second multi-mode qubit.
Claims20
A method, comprising:
- accessing a first multi-mode qubit that is coupled by a mode-selective coupler to a second multi-mode qubit;
- and
- exciting a dark mode of the first multi-mode qubit, wherein the exciting the dark mode entangles the first multi-mode qubit with the second multi-mode qubit.
A device, comprising:
- a first multi-mode qubit and a second multi-mode qubit;
- and
- a mode-selective coupler that couples the first multi-mode qubit to the second multi-mode qubit, wherein the mode-selective coupler is configured to, upon excitation of a dark mode of the first multi-mode qubit, entangle the first multi-mode qubit with the second multi-mode qubit.
A method, comprising:
- accessing a first two-junction transmon qubit and a second two-junction transmon qubit, wherein a middle capacitor pad of the first two-junction transmon qubit is capacitively coupled to another middle capacitor pad of the second two-junction transmon qubit;
- and
- entangling the first two-junction transmon qubit with the second two-junction transmon qubit, by driving the first two-junction transmon qubit with a dark mode excitation pulse sequence.
Dependencies are inferred from the claim text.