Superconducting qubit and device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsDae Yun Kim, Dae Seok Han, Kyung Mee Song
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Abstract
A superconducting qubit-based device includes: a superconducting qubit comprising a first conductive pad and a second conductive pad, each being formed of a superconducting material, and a ferromagnetic body configured to form a Josephson junction with the first conductive pad and the second conductive pad; a conducting wire spaced apart from the ferromagnetic body by a predetermined distance; and a control circuit configured to control a resonance frequency of the superconducting qubit by controlling a current flowing through the conducting wire.
Claims20
A superconducting qubit-based device, comprising:
- a superconducting qubit comprising a first conductive pad and a second conductive pad, each being formed of a superconducting material, and a ferromagnetic body configured to form a Josephson junction with the first conductive pad and the second conductive pad;
- a conducting wire spaced apart from the ferromagnetic body by a predetermined distance;
- and
- a control circuit configured to control a resonance frequency of the superconducting qubit by controlling a current flowing through the conducting wire.
A method of controlling a resonance frequency using a superconducting qubit-based device, wherein the superconducting qubit-based device comprises a superconducting qubit comprising a ferromagnetic body configured to form a Josephson junction with a first conductive pad and a second conductive pad, and a conducting wire, the method comprising:
- applying a current to the conducting wire such that a magnetic field greater than or equal to a predetermined critical value is generated;
- and
- controlling a resonance frequency of the superconducting qubit by moving a magnetic domain wall in the ferromagnetic body according to the application of the current.
A superconducting qubit comprising:
- a first conductive pad and a second conductive pad, each being formed of a superconducting material;
- and
- a ferromagnetic body configured to form a Josephson junction with the first conductive pad and the second conductive pad,
- wherein the ferromagnetic body comprises a magnetic domain wall.
Dependencies are inferred from the claim text.