论文标题
通过监视开放量子系统中的环境系统互动来准备最大纠缠状态
Preparing Maximally Entangled States By Monitoring the Environment-System Interaction In Open Quantum Systems
论文作者
论文摘要
通常，开放量子系统中的一个常见假设是，由于量子系统与其环境之间的连续相互作用，环境引起的噪声是导致该量子系统量子性能消失的原因。有趣的是，我们表明可以对环境进行设计和控制，以将任意量子系统引导到最大纠缠状态，因此可以被视为量子信息处理的资源。 Barreiro等人[Nature 470，486（2011）]使用高达五个捕获的离子的开放系统量子模拟器在实验中证明了这一想法。在本文中，我们将与环境相互作用的两个和四个量子位的任意初始混合状态变为最大纠缠状态。我们使用QASM模拟器以及一个IBM Q真实处理器，并且没有误差，以调查噪声对QUSE的影响，除了目标状态的群体外，噪声对QUS的制备对初始混合状态的作用。
A common assumption in open quantum systems in general is that the noise induced by the environment, due to the continuous interaction between a quantum system and its environment, is responsible for the disappearance of quantum properties of this quantum system. Interestingly, we show that an environment can be engineered and controlled to direct an arbitrary quantum system towards a maximally entangled state and thus can be considered as a resource for quantum information processing. Barreiro et.al. [Nature 470, 486 (2011)] demonstrated this idea experimentally using an open-system quantum simulator up to five trapped ions . In this paper, we direct an arbitrary initial mixed state of two and four qubits, which is interacting with its environment, into a maximally entangled state . We use QASM simulator and also an IBM Q real processor, with and without errors mitigating, to investigate the effect of the noise on the preparation of the initial mixed state of the qubits in addition to the population of the target state.
