论文标题
悬浮的纳米颗粒之间的固定高斯纠缠
Stationary Gaussian Entanglement between Levitated Nanoparticles
论文作者
论文摘要
光子的相干散射是光学机械耦合的一种新型机制，用于光学悬浮的纳米颗粒，有望与光和光线之间的多功能相互作用以及纳米颗粒之间进行强烈的多功能相互作用。我们表明，它允许在单独的镊子中有效地确定两个粒子之间的高斯纠缠。红色和蓝色的镊子的组合将机械的Bogoliubov模式带到了其基态。附加的，分散的耦合腔模式可以在正交模式下降低噪声，从而导致对数负性量化的强大纠缠，并使用对现实实验参数的Duan标准进行验证。对于当前实验而言，这种用于量子传感和量子模拟的重要资源是关键的，并且为在量子状态中具有多个颗粒的验光力学迈出了重要一步。
Coherent scattering of photons is a novel mechanism of optomechanical coupling for optically levitated nanoparticles promising strong, versatile interactions with light and between nanoparticles. We show that it allows efficient deterministic generation of Gaussian entanglement between two particles in separate tweezers. A combination of red- and blue-detuned tweezers brings a mechanical Bogoliubov mode to its ground state. An additional, dispersively coupled cavity mode can reduce noise in the orthogonal mode, resulting in strong entanglement as quantified by the logarithmic negativity and verifiable with the Duan criterion for realistic experimental parameters. Such an important resource for quantum sensing and quantum simulations is pivotal for current experiments and presents an important step towards optomechanics with multiple particles in the quantum regime.
