论文标题
在耗散环境下两种量子状态的演变：哪些量子资源生存更好，挤压或纠缠？
Evolution of two-mode quantum states under a dissipative environment: which quantum resource survives better, squeezing or entanglement?
论文作者
论文摘要
我们在不同的耗散环境下探索了两种模式高斯状态的挤压和纠缠（通过被动光学互连）的相对鲁棒性（通过被动光学互连）。当单个模式与相同的局部浴室相互作用时，纠缠和挤压衰减的速度相同。但是，当其中一种模式与局部浴室相互作用时，纠缠和挤压的比较鲁棒性取决于状态的初始挤压。同样，当系统与全球浴室相互作用时，纠缠和挤压的鲁棒性取决于初始挤压。因此，取决于耗散环境的性质和国家的初始挤压，可以从挤压和纠缠中选择更强大的资源形式来存储量子。这可以用来有效地增强基于连续可变高斯州的各种量子信息处理协议的性能。
We explore the relative robustness of squeezing and entanglement (which are quantum resources interconvertible via passive optics) for two-mode Gaussian states under different dissipative environments. When the individual modes interact with identical local baths, entanglement and squeezing decay at the same rate. However, when only one of the modes interacts with a local bath, the comparative robustness of entanglement and squeezing depends on the initial squeezing of the state. Similarly, when the system interacts with a global bath, the robustness of entanglement and squeezing depends on the initial squeezing. Thus depending on the nature of dissipative environments and the initial squeezing of the state, one can select the more robust form of resource out of squeezing and entanglement to store quantumness. This can be used to effectively enhance the performance of various quantum information processing protocols based on continuous variable Gaussian states.
