Quantum information transmission method and system

Abstract

The invention discloses a classical information transmission method and system for low-delay quantum bit measurement, and the method comprises the steps: carrying out the coding of quantum bit state information, and obtaining an effective quantum bit state information code and an idle code; enabling the sending end to periodically send an idle code to the receiving end, and enabling the receivingend to perform signal sampling on the idle code; adjusting the delay of the idle code according to the signal sampling result, so that the delay of the receiving end and the sending end meets the sampling synchronization; and enabling the sending end to send the effective quantum bit state information code to a receiving end. The method is simple in coding rule and low in information transmissiondelay, the system has good expansibility, implementation is easy, resource consumption is low, large-scale integration can be achieved conveniently and rapidly, and synchronization flexibility is greatly improved.

Description

Technical field [0001] The invention relates to the field of automation control, in particular to a quantum information transmission method and system. Background technique [0002] In the field of automation control, there are several commonly used methods for low-latency transmission of information between multiple homologous clock-controlled digital systems. For example, information is transferred through codec protocols with built-in clock recovery such as 8b10b. The method is mature and standardized, but the protocol is complex to implement, and functions such as clock recovery are not required in the homologous clock system. The complex protocol implementation also enables information decoding The delay becomes larger. Another example: increase the associated clock, use multiple signal lines to transmit information in parallel, and send the clock signal at the same time when the sender sends data. This method is relatively simple, but the disadvantage is that the number of...

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Problems solved by technology

For example, information is transmitted through codec protocols with built-in clock recovery such as 8b10b. This method is mature and standardized, but the implementation of the protocol is complicated. Functions such as clock recovery are not required in the homologous clock system. The complex protocol implementation also makes the decoding of information difficult. The delay becomes larger

Another example: add an accompanying clock, use multiple signal lines to transmit information in parallel, and send the clock signal at the same time when the sending end sends data. This method is also relatively simple, but the disadvantage is that the number of cables has changed a lot, and the current Many devices in China do not have the function of simultaneous output

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