束缚态工程化的抗退相干量子电池
Bound-State Engineered Quantum Batteries Against Decoherence
- Northeast Normal University（东北师范大学）
- Inner Mongolia University（内蒙古大学）
- RIKEN Center for Quantum Computing (RQC)（理化学研究所量子计算中心）
- Shangrao Normal University（上饶师范学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究利用系统-环境束缚态的形成机制抑制退相干，在三维各向异性光子晶体浴中实现无老化量子电池，通过调节原子频率和耦合强度调控束缚态数量，实现无损能量存储与按需提取。
AI中文摘要：
量子电池有望为能量存储带来革命性优势，但其性能从根本上受到环境退相干的制约，退相干会导致自放电和快速“老化”。在此，我们通过利用退相干抑制机制——系统-环境束缚态的形成——来攻克这一关键瓶颈。我们考虑一个嵌入三维各向异性光子晶体浴中的充电器-电池系统，并推导出精确的非马尔可夫动力学。引人注目的是，我们揭示了一个可调谐的相图，其中通过调节原子本征频率和耦合强度，系统可在零个、一个和两个束缚态之间切换。在存在两个束缚态的情况下，电池能量演化为持续的周期性振荡，从而实现无损能量存储和按需无限期提取，有效实现无老化量子电池。相反，束缚态的缺失会导致能量完全衰减。我们还证明，即使在自放电过程中，单个束缚态也能稳定可提取能量。这项工作确立了束缚态形成作为对抗退相干的一种强大且可行的策略，为在非马尔可夫光子平台上设计耐用的固态量子电池提供了清晰的蓝图。
英文摘要：
Quantum batteries promise revolutionary advantages for energy storage but are fundamentally crippled by environmental decoherence, which induces self-discharge and rapid "aging." Here, we crack this critical bottleneck by exploiting the decoherence-suppression mechanism: the formation of system-environment bound states. We consider a charger-battery system embedded in a three-dimensional anisotropic photonic crystal bath and derive exact non-Markovian dynamics. Strikingly, we reveal a tunable phase diagram where modulating the atomic eigenfrequency and coupling strength switches the system between zero, one, and two bound states. In the presence of two bound states, the battery energy evolves into a persistent periodic oscillation, enabling lossless energy storage and on-demand extraction indefinitely, effectively realizing an aging-free quantum battery. Conversely, the absence of bound states leads to complete energy decay. We also demonstrate that even during self-discharge, a single bound state can stabilize extractable energy. This work establishes bound-state formation as a powerful and feasible strategy for combating decoherence, offering a clear blueprint for designing durable solid-state quantum batteries in non-Markovian photonic platforms.
