Quantum Computing Synchronization With Delay-Corrected Trigger Distribution
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Solution Overview
Problem
Existing quantum computing systems face challenges in achieving high-speed and accurate synchronization of instrumentation devices due to restricted space in extremely low temperature environments and varying response delay times among devices, which affect the fidelity of quantum operations.
Innovation Solution
A synchronization trigger distribution device that corrects synchronization signals based on a control sequence table and delay time table to synchronize instrumentation devices with high timing accuracy, using a control sequence table to specify devices and delay times, and a delay correction unit to adjust signal timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the synchronization signal is supplied from outside the extremely low temperature environment, then the space restriction is avoided, but the wiring length increases and synchronization accuracy deteriorates
Solution Approach 1:
A synchronization trigger distribution device is introduced as an intermediary component that is partially placed inside the extremely low temperature environment. This device receives synchronization signals from outside, processes them with delay correction functionality, and distributes corrected trigger signals to multiple instrumentation devices. The intermediary structure allows the system to benefit from both external signal sourcing and internal precise distribution, resolving the contradiction between space availability and synchronization accuracy.
2Measurement precision
If the wiring length is reduced to improve synchronization accuracy, then the space constraint is violated
Solution Approach 1:
The synchronization system is segmented into multiple functional components: an external signal source, a synchronization trigger distribution device with delay correction, and multiple instrumentation devices. By segmenting the system and placing the distribution device inside the cold environment while keeping the signal source outside, the patent achieves both short wiring lengths for accurate signal distribution and adequate space for equipment placement.
3Adaptability or versatility
If multiple instrumentation devices are used to control quantum operations, then the functionality is improved, but the variation in response delay times increases and synchronization becomes more difficult
Solution Approach 1:
The synchronization trigger distribution device incorporates delay correction functionality that measures and compensates for the varying response delay times of different instrumentation devices. By implementing feedback-based delay correction, the system can accommodate multiple diverse instrumentation devices while maintaining precise synchronization, thus resolving the contradiction between enhanced functionality and synchronization accuracy.
Data Source
AI summary
A quantum computing system includes a quantum device configured to execute a quantum operation; instrumentation devices configured to transmit a control signal for executing the quantum operation; and a synchronization trigger distribution device configured to transmit a second trigger signal for instructing transmission of the control signal to at least one of the instrumentation devices based on a first trigger signal indicating a timing. The synchronization trigger distribution device includes a control sequence table for specifying a predetermined instrumentation device, to which the second trigger signal is to be output, based on the first trigger signal, and a delay time table for specifying a delay time corresponding to each of the instrumentation devices. The synchronization trigger distribution device outputs the second trigger signal to the instrumentation device specified based on the control sequence table, at a timing based on the delay time specified based on the delay time table.