近日，华南师范大学杜炎雄团队实现了无里德伯封锁的原子阵列中的几何栅极。相关论文发表在2025年10月8日出版的《物理评论A》杂志上。

里德伯封锁效应在实现原子阵列中的双量子比特门中起着重要作用。同时，这种力学会增加原子间的串扰，增强退相干性。

研究组提出了一种实现无里德伯封锁的控制相门的新方案。该方案在大的原子间距下有效地工作，并且对原子的热运动不敏感。该方法基于非绝热演化的几何特性，能够抵抗随机噪声，运行速度快。所提出的闸门实际上是一种非绝热完整控制与非常规几何控制同时结合的几何闸门。该方案可以研究两种不同类型的几何相位之间的干涉。

此外，研究组还证明了该方案的致动量（相互作用强度与演化时间的乘积）比现有的里德伯封锁方案小90倍。因此，该提议为实现几何量子控制提供了一种快速、自动的方法，并可能引发高维希尔伯特空间中新的几何门的发现。

附：英文原文

Title: Geometric gates in atomic arrays without Rydberg blockade

Author: Yue Ming, Zhao-Xin Fu, Yan-Xiong Du

Issue&Volume: 2025/10/08

Abstract: The Rydberg blockade effect plays an important role in realizing two-qubit gates in atomic arrays. Meanwhile, such mechanics will increase the crosstalk between atoms and enhance the decoherence. In this paper, we propose a new scheme to realize the controlled-phase gate without Rydberg blockade. The scheme works effectively with large atomic spacings and is insensitive to the thermal motions of atoms. The proposal is robust against random noises due to the geometric characteristic and operates fast based on the nonadiabatic evolution. The proposed gate is actually a geometric gate that consolidates the nonadiabatic holonomic control and the unconventional geometric control simultaneously. The interference between two different types of geometric phases can be investigated in the proposal. Furthermore, we show that the actuating quantity (the product of interaction strength and the evolution time) of the proposed scheme is 90 times smaller than the present Rydberg blockade scheme. Therefore, our proposal provides a fast and robust way to realize geometric quantum control, and it may trigger the discoveries of new geometric gates in high-dimensional Hilbert space.

DOI: 10.1103/tmr4-gtnl

Source: https://journals.aps.org/pra/abstract/10.1103/tmr4-gtnl