A quantum chip detection method

A chip detection and quantum technology, applied in electronic circuit testing, measuring electricity, measuring devices, etc., to achieve the effect of intuitive data analysis and simple detection process

Active Publication Date: 2021-10-08
ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently, there is no standard detection method for quantum chips

Method used

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  • A quantum chip detection method
  • A quantum chip detection method
  • A quantum chip detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0130] The following is an example of performing the above-mentioned quantum chip detection on a 6-bit quantum chip as an example. The preset frequency of the 6 qubit detectors is set between 6GHz-7GHz, so the first preset frequency range is 6GHz-7GHz. In this quantum chip, when the signal source that provides the qubit read signal outputs a power of about -10dBm, when the quantum chip test circuit reaches the data transmission bus in the quantum chip and is sent to the qubit detector, the qubit The working state of ineffective coupling between the device and the qubit detector is reached; when the signal source that provides the qubit read signal outputs a power of about -40dBm, it reaches the data transmission bus in the quantum chip through the quantum chip test line and sends it to the qubit When the detector is used, the qubit device and the qubit detector reach an effective coupling working state.

[0131] The detection operation for the 6-bit quantum chip specifically i...

Embodiment 3

[0162] Embodiment 3 provides a quantum detection method. The quantum chip is provided with a plurality of qubits connected in parallel on the data transmission bus, wherein any one of the qubits is provided with a one-to-one corresponding and mutually coupled qubit device and A qubit detector, one end of the qubit detector away from the corresponding qubit device is connected to a data transmission bus integrated on the quantum chip, and the data transmission bus is used to receive the qubit read signal and transmitting qubits to read feedback signals; the qubit devices are coupled with a first control signal transmission line, and the first control signal provided by the first control signal transmission line includes a DC voltage bias signal.

[0163] like Figure 7 As shown, when the quantum chip is detected, the working performance and working parameters of 1-N qubits are sequentially detected, and the detection steps of each qubit working performance and working parameter...

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Abstract

The invention belongs to the field of chip testing, and specifically discloses a quantum chip testing method. The quantum chip is provided with a plurality of one-to-one corresponding and mutually coupled qubit devices and qubit detectors, a data transmission bus connecting each of the qubit detectors in parallel, and a first Control signal transmission line. The data transmission bus is used to receive the qubit read signal and transmit the qubit read feedback signal, with the help of the qubit read signal and the qubit read feedback signal, sequentially detect and determine the status of the data transmission bus Conductivity, the working parameters and working performance of the qubit detector; and then apply a DC bias control signal on the first control signal transmission line to detect the conductivity of the first control signal transmission line and the qubit device The working performance of the quantum chip is judged whether it is qualified or not, and the standard detection method of the quantum chip is provided.

Description

technical field [0001] The invention belongs to the field of chip testing, in particular to a quantum chip testing method. Background technique [0002] As a type of chip, a quantum chip is the basic unit of a quantum computer. It is a processor based on the superposition effect of quantum states and uses qubits as the carrier of information processing. The quantum chip has at least one qubit inside. Quantum chips mainly include superconducting quantum chips, semiconductor quantum chips, quantum dot chips, ion traps, and NV (diamond) color centers. [0003] The quantum chip is integrated with a plurality of one-to-one corresponding and mutually coupled qubit devices and qubit detectors, and each of the qubit detectors is connected to an integrated device located on the quantum chip at one end away from the corresponding qubit device. A data transmission bus on the top, used to receive the qubit read signal and transmit the qubit read feedback signal; each of the qubit devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/28
CPCG01R31/2894
Inventor 孔伟成朱美珍杨夏赵勇杰
Owner ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD
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