论文标题
量子计算机上量子达尔文主义状态的实验实现
Experimental Realization of Quantum Darwinism State on Quantum Computers
论文作者
论文摘要
众所周知，破裂是实现各种量子信息处理任务的关键障碍。另一方面，它在解释量子系统的脆弱状态如何导致健壮的经典状态方面起着关键作用。 Zurek [Nat。物理。 5，181-188（2009）]开发了一种理论，该理论成功地描述了量子系统的经典客观性，这是环境引入的。在这里，我们考虑了模型宇宙的两个系统，其中第一个系统显示随机量子状态，另一个系统表示环境。我们采用2-，3-，4-，5和6 QUIT量子电路，该电路由一个量子组成，其余量子位代表环境Qubits。我们通过实验意识到该系统在两个真实设备IBMQ_ATHENS和IBMQ_16_MELBOURNE上构建的Darwinism态。然后，我们使用结果研究系统与环境之间存在的量子古典相关性和相互信息。
It is well-known that decoherence is a crucial barrier in realizing various quantum information processing tasks; on the other hand, it plays a pivotal role in explaining how a quantum system's fragile state leads to the robust classical state. Zurek [Nat. Phys. 5, 181-188 (2009)] has developed the theory which successfully describes the emergence of classical objectivity of quantum system via decoherence, introduced by the environment. Here, we consider two systems for a model universe, in which the first system shows a random quantum state, and the other represents the environment. We take 2-, 3-, 4-, 5- and 6-qubit quantum circuits, where the system consists of one qubit and the rest qubits represent the environment qubits. We experimentally realize the Darwinism state constructed by this system's ensemble on two real devices, ibmq_athens and ibmq_16_melbourne. We then use the results to investigate quantum-classical correlation and the mutual information present between the system and the environment.
