Reliable models of a large variety of open quantum systems can be described by Lindblad master equation. An important property of some open quantum systems is the existence of decoherence-free subspaces. In this paper, we develop tools for constructing stabilizer codes over open quantum systems governed by Lindblad master equation. We apply the developed stabilizer code formalism to the area of quantum metrology. In particular, a strategy to attain the Heisenberg limit scaling is proposed.
翻译:Lindblad主方程式可以描述大量开放量子系统的可靠模型。一些开放量子系统的一个重要属性是存在不兼容的子空间。在本文中,我们开发了一些工具,用于在Lindblad主方程式管理的开放量子系统上构建稳定器代码。我们在量子计量领域应用了已开发的稳定器代码形式主义。特别是,我们提出了实现海森堡极限缩放的战略。