六方氮化硼薄膜中自旋诱导的运动模式多体稳态纠缠
Spin-induced multipartite steady-state entanglement of motional modes in hexagonal boron nitride membranes
浏览论文内容
中文总结 AI 辅助
研究六方氮化硼薄膜中自旋诱导运动模式多体稳态纠缠，通过三个机械模式与自旋缺陷耦合，推导运动方程分析参数范围及耦合强度影响，结果表明能在广泛参数下实现不同振动模式间二分和三分稳态纠缠，利于二维连续变量簇态生成用于量子计算。
中文摘要 AI 辅助
本文聚焦于一种方案，即六方氮化硼（hBN）薄膜单层的三个高品质因子机械模式通过磁场相互作用与薄膜中一个共同的光学可寻址自旋缺陷耦合。我们表明，这种耦合在色散区域以及适当的磁场和微波调制下会诱导有效的声子 - 声子相互作用。我们推导了振动模式的朗之万 - 海森堡运动方程以分析达到物理稳定系统的最佳参数范围。我们还研究了耦合强度对纯度和纠缠的影响。结果表明，在广泛的实验参数范围内可实现hBN不同振动模式之间的二分和真正的三分稳态纠缠。该研究有潜力实现二维连续变量簇态生成的可扩展性，用于通用量子计算。
英文摘要
In this paper, we focus on a scheme in which three high-quality-factor mechanical modes of a hexagonal boron nitride (hBN) membrane monolayer are coupled to a common optically addressable spin defect present in the membrane via magnetic field interaction. We show that this coupling induces an effective phonon-phonon interaction in the dispersive regime and under appropriate magnetic field and microwave modulation. We derive the Langevin-Heisenberg equations of motion for vibrational modes to analyze optimal parameter regimes for reaching a physically stable system. We also investigate the effect of coupling strength on purity and entanglement. Our results demonstrate that bipartite and genuinely tripartite steady-state entanglement between different vibrational modes of hBN may be achieved in a broad spectrum of experimental parameters. This study has the potential to enable scalability to be implemented for the generation of two-dimensional continuous-variable cluster states for universal quantum computation.
