Pulse pattern generation method and pulse pattern generator for quantum voltage synthesis

Abstract

The invention provides a pulse code pattern generation method and a pulse code pattern generator for quantum voltage synthesis, and the method comprises the steps: encoding three-level waveform information and five-level waveform information, and obtaining initial three-level basic encoding information and initial five-level basic encoding information; reading the initial three-level basic coding information and / or the initial five-level basic coding information based on the address index value to obtain first target basic coding information and second target basic coding information; carrying out the coding based on the target coding rule to obtain the first N-bit coding information and second N-bit coding information, carrying out the digital-to-analog conversion on the first N-bit coding information and the second N-bit coding information, and obtaining a first pulse signal and a second pulse signal. Compared with the prior art, the generation method and the generator have the advantages that the number of levels is large, the storage space is small, the output pulse amplitude is convenient to adjust, and the phase can be adjusted at will.

Description

technical field [0001] The present application relates to the field of pulse-driven alternating current quantum voltage synthesis, in particular to a method for generating a pulse pattern for quantum voltage synthesis and a pulse pattern generator. Background technique [0002] Pulse Pattern Generator (PPG) is a quantum voltage synthesis system - Josephson Arbitrary Waveform Synthesizer (JAWS), or AC Josephson Voltage Standard (AC Josephson Voltage Standard, ACJVS) core equipment. At present, various types of PPG have problems in the number of levels, storage methods, output pulse amplitude adjustability, and relative phase adjustability. [0003] The problem with the superimposed positive pulse and negative pulse PPG is that it can only generate signals with three levels, but cannot generate signals with five levels. [0004] The problems of the two-level pulse sequence and the microwave signal coupling type PPG are: (1) the amplitude of the positive pulse and the negativ...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of this application is to provide a pulse pattern generation method and a pulse pattern generator for quantum voltage synthesis, which solve the problem of limited number of levels, large storage space occupied by waveforms, and inconvenient adjustment of amplitudes in the prior art. The technical problem that the phase is not easy to adjust

Images