论文标题
创建用于量子增强传感的多粒子纠缠状态的协议
A protocol to create a multi-particle entangled state for quantum-enhanced sensing
论文作者
论文摘要
我们提出了一种协议，用于使用被困在光腔中的原子的相干操纵来生成多粒子纠缠状态。我们展示了如何通过两个对照梁绝热地产生纠缠，并利用原子之间的腔介导的相互作用。我们的方法将允许为我们提出的测量协议提供最佳的纠缠。我们讨论了实验实施，并将产生的状态与经典状态和理想最大条件的迪克国家的绩效进行比较。我们发现，在测量磁场梯度中，我们的状态始终具有计量学增益，甚至超过理想的迪克状态。由于简单的可伸缩性，我们的纠缠协议是量子状态工程的有前途的工具。
We propose a protocol for generating multi-particle entangled states using coherent manipulation of atoms trapped in an optical cavity. We show how entanglement can be adiabatically produced with two control beams and by exploiting cavity-mediated interactions between the atoms. Our methods will allow for optimal generation of entanglement for the measurement protocol we propose. We discuss an experimental implementation and compare the performance of the states produced with those of classical states and ideal maximally-entangled Dicke states. We find that our states always feature metrological gain and even outperform ideal Dicke states in the measurement of magnetic field gradients. Due to the easy scalability, our entanglement protocol is a promising tool for quantum state engineering.
