标题： 基于超固体的环形腔重力仪 显示英文标题

标题： A supersolid-based gravimeter in a ring cavity

摘要： 我们提出了一种基于驱动玻色-爱因斯坦凝聚体的类似超固体相的复合光-物质干涉仪，该相与光学环形腔中一对简并的反向传播电磁模式耦合。 在重力影响下的类似超固体的凝聚体会带动腔的光学势能，从而改变两个{空腔电磁场}的相对相位。 因此，监测腔输出场的相位演化可以实现对重力加速度的非破坏性测量。 我们表明，所提出的重力计的灵敏度随着原子数量呈现出类似海森堡的标度。 由于腔场的相对相位对光子损失不敏感，该重力计对这些有害效应具有鲁棒性。 对于最先进的实验参数，这种重力计的相对灵敏度$\Delta g/g$可以达到$10^{-10}$--$10^{-8}$的量级，对于约五十万个原子的凝聚体和几秒的探测时间而言。 显示英文摘要

摘要： We propose a novel type of composite light-matter interferometer based on a supersolid-like phase of a driven Bose-Einstein condensate coupled to a pair of degenerate counterpropagating electromagnetic modes of an optical ring cavity. The supersolid-like condensate under the influence of the gravity drags the cavity optical potential with itself, thereby changing the relative phase of the two {cavity electromagnetic fields}. Monitoring the phase evolution of the cavity output fields thus allows for a nondestructive measurement of the gravitational acceleration. We show that the sensitivity of the proposed gravimeter exhibits Heisenberg-like scaling with respect to the atom number. As the relative phase of the cavity fields is insensitive to photon losses, the gravimeter is robust against these deleterious effects. For state-of-the-art experimental parameters, the relative sensitivity $\Delta g/g$ of such a gravimeter could be of the order of $10^{-10}$--$10^{-8}$ for a condensate of a half a million atoms and interrogation time of the order of a few seconds.