Quantum Bit Control Signal Generation for Multi-Qubit Tests
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Solution Overview
Problem
Conventional methods for generating quantum bit control signals are limited by the storage capacity of arbitrary waveform generators, making it challenging to meet the requirements of multi-bit quantum bit tests, such as quantum state tomography, which necessitates a large number of pre-designed and pre-stored control signals.
Innovation Solution
A method and system that utilize a master computer to store and manage a set of reference quantum gates, allowing for the generation of quantum bit control signals by decomposing target quantum programs into basic quantum logic gates, processing, and converting them into quantum bit control signals, thereby reducing the storage requirements and increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quantum bit control signals are pre-designed and pre-stored in the arbitrary waveform generator, then the system can provide reliable control signals for quantum operations, but the storage capacity of the arbitrary waveform generator becomes insufficient for multi-bit quantum bit tests
Solution Approach 1:
The patent segments the control signal generation process into two parts: a small set of reference quantum gates are pre-stored in the arbitrary waveform generator, while the complete quantum program is decomposed into these reference gates and generated in real-time through logical operations. This segmentation allows the system to handle multi-bit quantum bit tests without requiring excessive storage capacity.
Solution Approach 2:
The patent introduces an intermediary processing system that receives the complete quantum program, decomposes it into reference quantum gates, and generates control signals through logical operations. This intermediary system acts as a bridge between the quantum program and the arbitrary waveform generator, enabling the generator to operate within its storage constraints while still supporting complex multi-bit quantum operations.
2Productivity
If all quantum bit control signals are pre-stored in the arbitrary waveform generator, then the system can ensure operating efficiency, but the hardware resource requirements become prohibitively high
Solution Approach 1:
The patent implements a dynamic control signal generation approach where the arbitrary waveform generator does not statically store all possible control signals, but instead dynamically generates them through logical operations on reference gates. This dynamic approach maintains operating efficiency while significantly reducing hardware storage requirements.
Solution Approach 2:
The patent uses copying by storing only reference quantum gate patterns in the arbitrary waveform generator and generating specific control signals by copying and combining these references according to the quantum program requirements. This eliminates the need to store every possible control signal individually, reducing hardware complexity while maintaining productivity.
3Adaptability or versatility
If the arbitrary waveform generator stores a large number of quantum bit control signals, then multi-bit quantum bit tests can be supported, but the system complexity and storage requirements increase significantly
Solution Approach 1:
The patent makes the stored reference quantum gates universal by designing them to be reusable building blocks that can construct any quantum operation through logical combinations. This universality allows the system to support multi-bit quantum bit tests with limited storage capacity, as the same reference gates can be repeatedly used and combined in different ways.
Solution Approach 2:
The patent transitions from storing control signals in the time domain to storing reference gate patterns that can be logically combined. This dimensional change from direct signal storage to pattern-based generation enables the system to achieve high adaptability for multi-bit quantum tests without proportionally increasing storage capacity.
Data Source
AI summary
The present disclosure provides a method and a system for generating a quantum bit control signal. The method includes: receiving a first tag code and a first standard signal corresponding to each basic quantum logic gate in a set of reference quantum gates from a master computer; storing the first standard signal, and obtaining a first address code identifying a storage location of the first standard signal; receiving a target tag code and a target time code corresponding to each basic quantum logic gate in a target quantum program from the master computer; and obtaining, according to the target tag code and the target time code, the first standard signal corresponding to the basic quantum logic gate in the target quantum program as a signal to be processed, and processing the signal to be processed to obtain the quantum bit control signal. The present disclosure may satisfy requirements of a multi-bit quantum bit test and provide quantum bit control signals required by the multi-bit quantum bit test, thereby greatly increasing a response speed of a control-signal generation module and ensuring a speed of subsequent quantum operations.