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

A superconducting ring and isolator technology, applied in the field of quantum computing, can solve the problems of unfavorable scale development of superconducting quantum computing circuits, serious heat loss, and large volume, and achieve low dissipation, small volume, and simplified superconducting The effect of the quantum test system

Active Publication Date: 2021-12-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the application clearer, the embodiments of the application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0031] The embodiment of the present application provides an on-chip superconducting circulator (ICI, Isolator-Circulator-Isolator). The ICI is an on-chip device with non-reciprocity, small size, low dissipation, and can be integrated with a superconducting circuit. It not only has the isolation function but also has the ring function, and the ICI provided by the embodiment of the present application can be directly connected with the quantum chip and the reflective quantum amplifier to protect the quantum chip from being disturbed. The ICI provided by the embodiment of the present applicat...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/38H01P1/36G06N10/00G01D21/00
CPCG01D21/00G06N10/00H01P1/36H01P1/38
Inventor 黄汝田何楷泳耿霄戴根婷赵昌昊刘建设陈炜
Owner TSINGHUA UNIV
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