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US 12,603,411 B2Granted
Reading device for superconducting qubit
AssigneeUniversity of Science and Technology of China
InventorsFengming Liu, Mingcheng Chen, Can Wang, Chaoyang Lu, Jianwei Pan
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Abstract
The present disclosure provides a reading device for superconducting qubit, including a qubit, a reading cavity and a Josephson junction, where the qubit is coupled with the reading cavity through the Josephson junction.
Claims8
A reading device for superconducting qubit, applied to dispersion measurement for the superconducting qubit, the reading device comprising:
- a qubit, a reading cavity and a Josephson junction, wherein the qubit is coupled with the reading cavity through the Josephson junction, wherein the qubit of the reading device and the reading cavity are coupled by ZZ coupling of the Josephson junction under respective independent energy eigenstate basis vectors, the reading cavity is a distributed transmission-line-type resonant cavity, a frequency of the transmission-line-type resonant cavity is changed by a state of the gubit, and a position of a connection point of the Josephson junction and the transmission-line-type resonant cavity and a characteristic impedance of a transmission line are determined according to a required coupling strength.
Dependencies are inferred from the claim text.