An on-chip superconducting ring spacer and superconducting quantum testing system

Abstract

The application discloses an on-chip superconducting ring spacer and a superconducting quantum test system, which have the function of isolation and circulation, and play the role of a circulator and an isolator at the same time. Moreover, the on-chip superconducting ring spacer in the embodiment of the application The device is integrated on a chip, which has non-reciprocity, small size, and low dissipation. It can be integrated with superconducting circuits, which is conducive to the large-scale development of superconducting quantum computing circuits. Furthermore, through the design of the on-chip circuit, the on-chip superconducting annular spacer provided by the embodiment of the present application also has the functions of filtering and attenuation.

Description

technical field [0001] This application relates to but not limited to the technical field of quantum computing, especially an on-chip superconducting ring spacer and a superconducting quantum testing system. Background technique [0002] figure 1 It is a schematic diagram of a superconducting quantum computer test system in the related art, such as figure 1 As shown, in the superconducting quantum test system, the quantum information Qubit is read out through the readout cavity on the quantum chip, and passes through filters, isolators, circulators, reflective quantum amplifiers such as impedance matching parametric amplifiers (IMPA, Impedance Transformed ParametricAmplifier ), Josephson Parametric Amplifier (JPA, Josephson Parametric Amplifier), etc., and then through a series of devices such as an isolator, a high-electron mobility transistor (HEMT, High-Electron Mobility Transistor) amplifier, etc., and finally output. Among them, devices such as isolators and circulato...

AI Technical Summary

Problems solved by technology

Among them, devices such as isolators and circulators are independent devices with large volume and serious heat loss, which is not conducive to the large-scale development of superconducting quantum computing circuits.

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