Preparation and verification of two-mode mechanical entanglement through pulsed optomechanical measurements
Preparation and verification of two-mode mechanical entanglement through pulsed optomechanical measurements
复制标题
DOI：
10.1088/1367-2630/abe1e4
复制
发表时间：
2020-11
影响因子：
3.3
通讯作者：
P. Neveu;Jack Clarke;M. Vanner;E. Verhagen
中科院分区：
文献类型：
--
作者：
P. Neveu;Jack Clarke;M. Vanner;E. Verhagen
提出了一种利用短光脉冲和测量的方法来产生和验证耦合到单个光腔的两个机械模间的二体高斯纠缠的协议。我们的协议既不需要解析的边带区域，也不需要低热声子占有率，并且允许在不到一个机械运动周期内产生和验证量子纠缠。通过条件化位置测量，通过有效的双模机械压缩产生纠缠。我们研究了纠缠对机械频率和光机耦合速率的实验偏差的稳健性。
We propose a protocol how to generate and verify bipartite Gaussian entanglement between two mechanical modes coupled to a single optical cavity, by means of short optical pulses and measurement. Our protocol requires neither the resolved sideband regime, nor low thermal phonon occupancy, and allows the generation and verification of quantum entanglement in less than a mechanical period of motion. Entanglement is generated via effective two-mode mechanical squeezing through conditioning position measurements. We study the robustness of entanglement to experimental deviations in mechanical frequencies and optomechanical coupling rates.