反向量子老化：从量子老化态恢复节律性
Reverse quantum aging: Restoring rhythmicity from quantum aging state
AI总结：
本文针对全局耦合量子振子网络的老化相变问题，提出引入受控非相干单玻色子泵浦通道的方法，可在远弱于完全补偿耗散的泵浦强度下消除老化相变，恢复节律性，为提升量子振子网络动力学鲁棒性提供有效机制。
摘要：
近期研究报道了量子老化相变：当全局耦合量子自维持振子网络的非活跃节点比例超过临界值时，其振荡动力学将急剧退化。本文探究反向过程：通过引入受控非相干单玻色子泵浦通道，从量子振子网络的老化态恢复节律动力学。针对全局耦合活跃-非活跃量子Stuart-Landau振子，采用Lindblad形式的自洽量子主方程分析，结果表明：逐步增大泵浦强度可逐步抑制老化相变并最终消除该相变，即使所有振子均非活跃时也能恢复节律性。值得注意的是，无需完全补偿耦合诱导的耗散损耗，远弱得多的泵浦强度即可消除老化相变。研究显示，该恢复由非活跃振子的Fock态布居向更高占据态的重新分布所主导。本研究证实，受控非相干泵浦是恢复量子振子网络动力学鲁棒性的有效机制。
英文摘要：
Quantum aging transition has recently been reported, whereby the oscillatory dynamics of a network of globally coupled quantum self-sustained oscillators is degraded sharply when the fraction of inactive nodes exceeds a critical value. Here we explore the reverse process: the revival of rhythmic dynamics from an aged state in a quantum oscillator network by introducing a controlled incoherent single-boson pumping channel. Using a self-consistent quantum master equation in the Lindblad form for globally coupled active--inactive quantum Stuart--Landau oscillators, we show that increasing the pumping strength progressively suppresses the aging transition and eventually eliminates it, restoring rhythmicity even when all oscillators are inactive. Remarkably, complete compensation of the coupling-induced dissipative loss is not required; a substantially weaker pumping strength is sufficient to eliminate the aging transition. We show that the revival is governed by a redistribution of the Fock-state population of the inactive oscillators toward higher-occupation states. Our results establish controlled incoherent pumping as an effective mechanism for restoring dynamical robustness in quantum oscillator networks.
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