We consider linear open quantum systems with passive Hamiltonians and a single, local dissipative process. Generally speaking, these systems are easier to implement than systems with active Hamiltonians and non-local dissipative processes. We parametrize the set of all covariance matrices corresponding to pure Gaussian steady states that can be achieved by this type of quantum system. Given such pure states, we parametrize the corresponding linear quantum systems with passive Hamiltonians and a single, local dissipative process that generate them.

中文翻译：

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具有被动哈密顿量和单个局部耗散过程的线性开放量子系统

我们考虑具有被动哈密顿量和单个局部耗散过程的线性开放量子系统。一般而言，这些系统比具有主动哈密顿量和非局部耗散过程的系统更易于实现。我们对与这种类型的量子系统可以实现的纯高斯稳态对应的所有协方差矩阵的集合进行参数化。给定这种纯态，我们用被动哈密顿量和产生它们的单个局部耗散过程对相应的线性量子系统进行参数化。