论文标题
海森堡限制的旋转式旋转 - 通过骨驱动驾驶
Heisenberg-limited spin-squeezing via bosonic parametric driving
论文作者
论文摘要
由腔腔产生的自旋旋转相互作用是产生高度纠缠旋转状态的标准机制。我们在这里展示了如何在腔体上引入弱的droged参数（两光驱动）驱动器，这为控制诱导相互作用的形式提供了一种强大的手段。没有驱动器，诱导的相互作用将无法产生Heisenberg限制的自旋挤压，但是弱优化驱动器会产生理想的两轴扭转相互作用和Heisenberg限制的挤压。参数驱动在受耗散限制的限制的方案中也是有利的，并且可以启用一种替代绝热方案，该方案可以制备最佳的类似dicke的状态。我们的方案与许多平台兼容，包括固态系统，其中旋转集合与超导量子电路或机械模式耦合。
Spin-spin interactions generated by a detuned cavity are a standard mechanism for generating highly entangled spin squeezed states. We show here how introducing a weak detuned parametric (two-photon) drive on the cavity provides a powerful means for controlling the form of the induced interactions. Without a drive, the induced interactions cannot generate Heisenberg-limited spin squeezing, but a weak optimized drive gives rise to an ideal two-axis twist interaction and Heisenberg-limited squeezing. Parametric driving is also advantageous in regimes limited by dissipation, and enables an alternate adiabatic scheme which can prepare optimally squeezed, Dicke-like states. Our scheme is compatible with a number of platforms, including solid-state systems where spin ensembles are coupled to superconducting quantum circuits or mechanical modes.
