论文标题
开放量子系统的运营商增长
Operator Growth in Open Quantum Systems
论文作者
论文摘要
量子信息在封闭的系统中的传播通常被称为争夺，是多体量子动力学的标志。在开放系统中，争夺与噪音，错误和脱谐性竞争。在这里，我们提供了一个通用框架，描述了开放系统中量子信息的争夺：我们预测，开放系统动力学的效果从根本上由操作员尺寸分布和独立于微观误差机制控制。该框架使我们能够证明开放量子系统表现出通用类别的信息动态类别，从根本上讲，这些动态与单一的同行不同。将讨论对Loschmidt Echo实验的影响以及开放量子动力学的经典模拟性。
The spreading of quantum information in closed systems, often termed scrambling, is a hallmark of many-body quantum dynamics. In open systems, scrambling competes with noise, errors and decoherence. Here, we provide a universal framework that describes the scrambling of quantum information in open systems: we predict that the effect of open-system dynamics is fundamentally controlled by operator size distributions and independent of the microscopic error mechanism. This framework allows us to demonstrate that open quantum systems exhibit universal classes of information dynamics that fundamentally differ from their unitary counterparts. Implications for Loschmidt echo experiments and the classical simulability of open quantum dynamics will be discussed.
