量子触发器是量子逻辑电路中一个很重要的量子器件，在量子计算领域有着重要的意义。根据量子触发器的逻辑功能， 利用量子触发器输入和输出之间的关系，研究了一种通过引入辅助比特来解决数字电路反馈问题以及实现数据保持状态 锁存功能的方法。设计构造了五种不同的量子触发器并对量子线路进行了优化。这些量子锁存器在建造量子计算机中 可以作为可扩展的基本锁存功能单元使用。

As an important part of the quantum logic devices, quantum latches have great significance in the field of quantum computers. According to the quantum latch logic functions and relationship between the input and output of quantum latches, auxiliary bits was introduced to solve the problems of digital circuit feedback and realize the latch function of keeping data state. Five different quantum latches were designed and constructed and then the quantum routes for optimization were modified. Such quantum latches can be used as general and scalable basic latch functional unit in the construction of quantum computers.