Preparation of pure Gaussian states via cascaded quantum systems
Preparation of pure Gaussian states via cascaded quantum systems
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DOI：
10.1109/cca.2014.6981592
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发表时间：
2014-08
期刊：
影响因子：
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通讯作者：
Shan Ma;M. Woolley;I. Petersen;N. Yamamoto
中科院分区：
文献类型：
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作者：
Shan Ma;M. Woolley;I. Petersen;N. Yamamoto
本文提供了一种在线性量子系统中制备纯高斯态的方法。结果表明，任何纯高斯态都可以由一维开放量子谐振子级联产生，而这些谐振子之间没有任何直接的相互作用哈密顿量。从实验的角度来看，这在物理上是有利的。最后给出了一个制备双模压缩态的例子。
This paper provides an alternative approach to the problem of preparing pure Gaussian states in a linear quantum system. It is shown that any pure Gaussian state can be generated by a cascade of one-dimensional open quantum harmonic oscillators, without any direct interaction Hamiltonians between these oscillators. This is physically advantageous from an experimental point of view. An example on the preparation of two-mode squeezed states is given to illustrate the theory.