稀疏耦合自旋态用于中性原子的计量学
量子物理
2025-06-24 v2 量子气体
摘要
具有广泛多体纠缠的量子态是量子增强计量学的资源,可实现至海德鲁极限的灵敏度。然而,使用单一动力学鲁棒生成这些态的常规方法通常需要粒子之间的所有两两相互作用。本文表明,针对量子感知的最优态可通过仅每个粒子具有对数数量耦合的稀疏相互作用图来生成。我们证明,具有特定稀疏图和长程相互作用的图可近似大规模系统中所有两两自旋模型的动力学,如一轴扭转模型。 resulting sparse coupling graphs and protocol can also be efficiently implemented using dynamic reconfiguration of atoms in optical tweezers.
引用
@article{arxiv.2412.10010,
title = {Entangled states from sparsely coupled spins for metrology with neutral atoms},
author = {Sridevi Kuriyattil and Pablo M. Poggi and Jonathan D. Pritchard and Johannes Kombe and Andrew J. Daley},
journal= {arXiv preprint arXiv:2412.10010},
year = {2025}
}
备注
5 Pages + Supplementary Material. 4 figures in the main text