论文标题
通过临时重置加速量子放松：一种以MPEMBA为灵感的方法
Accelerating Quantum Relaxation via Temporary Reset: A Mpemba-Inspired Approach
论文作者
论文摘要
缓慢的放松过程跨越广泛分开的时间尺度，对探测稳态特性和工程功能量子系统（例如量子热发动机和量子计算设备）提出了基本挑战。我们引入了一种通用量子重置协议，该协议可以在马尔可夫开放量子系统中实现指数加速。该协议诱导量子mpemba效应，其中，远离平衡初始化的系统可以比靠近它的系统更快放松，并且至关重要的是，即使最慢的衰减lindbladian模式形成复杂的偶联对，这种加速度仍然存在。与通常针对单个模式的以前的方法不同，我们的协议同时消除了多个放松模式。具体而言，使用简单的去极化通道，我们表明可以显着加速耗散性横向场iSing链的松弛，从而强调协议的实验可行性。该框架提供了一种多功能且具有实验性的可行工具，用于控制量子松弛时间尺度，对量子热力学，计算和状态制备具有广泛的影响。
Slow relaxation processes spanning widely separated timescales pose fundamental challenges for probing steady-state properties and engineering functional quantum systems, such as quantum heat engines and quantum computing devices. We introduce a universal quantum reset protocol that enables exponential acceleration of relaxation in general Markovian open quantum systems. The protocol induces a quantum Mpemba effect, wherein systems initialized farther from equilibrium can relax faster than those closer to it, and crucially, this acceleration persists even when the slowest decaying Lindbladian modes form complex-conjugate pairs. Unlike previous approaches, which typically target a single mode, our protocol eliminates multiple relaxation modes simultaneously. Specifically, using a simple depolarizing channel, we show that the relaxation of a dissipative transverse-field Ising chain can be significantly accelerated, underscoring the experimental feasibility of the protocol. This framework provides a versatile and experimentally feasible tool for controlling quantum relaxation timescales, with broad implications for quantum thermodynamics, computation, and state preparation.
