相关实验视频
Updated: Jan 16, 2026

11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
7.8K
通过Rydberg气体在驱动散流系统中观察多个时间晶体
Yuechun Jiao1,2, Weilun Jiang2,3, Yu Zhang1
1State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan, China.
Nature communications
|October 3, 2025
概括
研究人员观察到多个时间晶体,包括连续,亚和和高和类型,在驱动散射的里德伯格气体中. 这一突破为探索非平衡物理和量子计量学应用提供了新的途径.
科学领域:
- 量子物理学的量子物理学
- 凝聚物质物理学 凝聚物质物理学
- 非平衡的统计力学.
背景情况:
- 时间晶体是物质的新状态,表现出周期性行为,打破了时间翻译对称性.
- 开放量子系统中的分散时间晶体为实现时间晶体秩序提供了独特的途径.
- 里德伯格气体为研究强烈相互作用的量子现象提供了一个可控制的平台.
研究的目的:
- 报告在单个实验系统内观察了多个不同的时间晶相.
- 研究莱德伯格激发在不同时间晶体秩序的出现中的作用.
- 探索这些系统对量子计量学的潜力.
主要方法:
- 使用连续驱动的消散和强烈相互作用的里德伯格气体.
- 操纵Rydberg激发参数以控制和观察不同的时间晶相.
- 描述观察到的阶段的时间动态和对称性破坏.
主要成果:
- 在同一系统中观察连续时间晶体,亚时间晶体和高时间晶体.
- 通过调整瑞德伯格激发,展示了切换不同时间晶体相的能力.
- 持续振荡的证据植根于新出现的量子相关性.
结论:
- 这些发现为研究物质非平衡相形成了一个多功能平台.
- 多个时间晶体可以实现和控制在一个单一驱动-消散的赖德伯格系统.
- 这些时间晶体对先进的量子计量学具有前景,包括超越标准量子极限的传感和参数估计.
相关概念视频
The de Broglie Wavelength
32.9K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
32.9K
Double Resonance Techniques: Overview
698
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
698

