量子存储器:写入、读取和重置
Quantum memory: Write, read and reset
摘要:
提出了一种内容为纯量子态的量子存储器模型。在这个模型中,写、读和复位存储器的基本操作是通过从存储器中散射来执行的。量子存储器在散射后必须保持纯态的要求意味着散射是一种特殊类型的散射,只有某些入射波是允许的。以一维费米赝势为例,说明了对散射过程的要求是一致的,可以满足。该模型与常用的量子存储器模型相比,最重要的区别是空间维度和干涉在本模型中起着核心作用。
英文摘要:
A model is presented for the quantum memory, the content of which is a pure quantum state. In this model, the fundamental operations of writing on, reading, and resetting the memory are performed through scattering from the memory. The requirement that the quantum memory must remain in a pure state after scattering implies that the scattering is of a special type, and only certain incident waves are admissible. An example, based on the Fermi pseudo-potential in one dimension, is used to demonstrate that the requirements on the scattering process are consistent and can be satisfied. This model is compared with the commonly used model for the quantum memory; the most important difference is that the spatial dimensions and interference play a central role in the present model.
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