发表机构
Northeast Normal University; Ludong University; Shangrao Normal University; RIKEN Center for Quantum Computing (RQC)（东北师范大学; 鲁东大学; 上饶师范学院; 理化学研究所量子计算中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出并研究了非马尔可夫光机谐振器中由DOPA介导的非互易声子激光器，利用萨尼亚克-斐索效应实现单向激光，并发现非马尔可夫效应可进一步降低阈值功率，增强激光性能。
AI 中文摘要
声子激光器放大机械振动，作为相干声学研究以及超灵敏传感和信息处理等应用的关键工具，已在马尔可夫系统中得到广泛研究，但在非马尔可夫系统中仍未探索。在本文中，我们提出了在马尔可夫近似下，由非线性光机谐振器和简并光学参数放大器（DOPA）组成的耦合腔系统中的非互易声子激光器。声子激光器的机械增益和阈值功率受到萨尼亚克-斐索效应的影响，这导致了单向声子激光器，并通过DOPA增强了声子激光器的性能。此外，我们将非互易声子激光器推广到非马尔可夫区域。我们发现，在DOPA固定的情况下，非马尔可夫效应可以进一步降低声子激光器的阈值功率，从而增强声子激光器。我们的工作揭示了低功率机械隔离与非马尔可夫效应之间的联系，为在更广泛的应用范围内操纵腔光机器件提供了一条途径。
英文摘要
Phonon lasers amplify mechanical vibrations, serving as key tools for coherent acoustics research and applications such as ultrasensitive sensing and information processing, which has been extensively studied in Markovian systems but remains unexplored in non-Markovian ones. In this paper, we propose the nonreciprocal phonon laser in a coupled cavity system composed of nonlinear optomechanical resonator and degenerate optical parametric amplifier (DOPA) under the Markovian approximation. The mechanical gain and threshold power of the phonon laser are influenced by Sagnac-Fizeau effects, which leads to the unidirectional phonon laser and enhances the phonon laser performance via DOPA. Moreover, we generalize the nonreciprocal phonon laser to non-Markovian regimes. We find that non-Markovian effects can lead to the further enhancement of the phonon laser at a lower phonon laser threshold power with DOPA fixed. Our work reveals connections between low-power mechanical isolation and non-Markovian effects, offering a pathway to manipulate cavity optomechanical devices across a broader range of applications.
Comments18 pages, 14 figures
