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相关概念视频

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

912
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
912

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相关实验视频

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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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时间晶体在单模非线性空腔中

Yaohua Li1, Chenyang Wang1, Yuanjiang Tang1

  • 1State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China.

Physical review letters
|May 17, 2024
PubMed
概括

我们展示了一个时间晶体在一个非线性空洞,一个新的阶段的物质打破时间翻译对称. 这一由增强和减弱驱动的发现,为不平衡物理和量子系统提供了新的见解.

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
  • 非线性动力学是一种非线性动力学.

背景情况:

  • 时间晶体是一种新的非平衡阶段类,其特点是时间转换对称性被打破.
  • 了解它们在实验上可访问的系统中的形成和特性是一个关键的挑战.

研究的目的:

  • 为了证明在单模非线性空洞中存在时间晶体.
  • 调查这个时间晶相的潜在机制和光谱特性.

主要方法:

  • 使用具有线性增益和非线性阻尼的单模非线性腔.
  • 在热力学极限中分析Liouvillian光谱的消散性差距关闭和纯想象的固有值.
  • 观测量子振荡和长时间尺度的消散进化.

主要成果:

  • 在非线性腔体中成功证明了时间晶体阶段.
  • 在热力学极限中确定了急剧的消散差距关闭和纯虚拟的Liouvillian自值.
  • 一个带有量子振荡的元稳定状态先于一个长时间的消散进化,表明在霍夫分叉处的消散相位过渡.

结论:

  • 该研究为实现和研究时间晶体建立了一个实用的平台.

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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
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  • 这些发现加深了对不平衡阶段和消散量子系统的理解.
  • 这项工作为实验调查和时间晶体的理论探索开辟了新的途径.