在瑞德伯格模拟器中,超出PXP模型的量子多体痕
Aron Kerschbaumer1, Marko Ljubotina1,2,3, Maksym Serbyn1
1Institute of Science and Technology Austria, (ISTA), Am Campus 1, 3400 Klosterneuburg, Austria.
Physical review letters
|May 9, 2025
概括
量子多体痕 (QMBS) 在新的模型中被发现,这些模型是PXP模型的概括. 这些QMBS表现出振荡动态,并且需要特定的初始状态在Rydberg原子模拟器中进行观测.
科学领域:
- 量子物理学的量子物理学
- 多体系统是多体系统.
- 原子物理 原子物理
背景情况:
- 量子多体痕 (QMBSs) 是量子哈密尔顿的非热固有状态.
- 在Rydberg原子模拟器中观察到QMBS,特别是在PXP模型中.
- 不同模型中的QMBS的流行和物理实现仍然是活跃的研究领域.
研究的目的:
- 在PXP模型之外的更广泛类型模型中调查QMBS的存在和属性.
- 将QMBS的概念概括为包括更长距离的相互作用和不同的周期性.
- 在这些通用模型中探索观察QMBS的条件.
主要方法:
- 纳入更长范围约束的通用模型的理论研究.
- 分析与不同QMBS家族相关的近似 su(2) 代数.
- 从各种初始状态启动的量子力学模拟,包括微弱纠的状态.
主要成果:
- 证明QMBS存在于一个更广泛的模型家族中,这些模型概括了PXP模型.
- 识别了多个QMBS家族,每一个都与一个不同的近似 su(2) 代数有关.
- 在这些模型中观察到QMBS特征的振荡动态.
- 在这些通用模型中观察QMBS需要弱交错的初始状态,与PXP模型不同.
结论:
- QMBS比以前认为的更为常见,存在于更广泛的物理模型中.
- 这些发现提供了一个理论框架,用于在具有更长距离交互的系统中探索QMBS.
- 实验验证这些QMBS是可行的,使用Rydberg原子模拟器与更长距离的Rydberg封锁.
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