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相关概念视频

The de Broglie Wavelength02:32

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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...
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Electromagnetic Wave Equation01:24

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Maxwell's equations for electromagnetic fields are related to source charges, either static or moving. These fields act on a test charge, whose trajectory can thus be determined using suitable boundary conditions. The objective of electromagnetism is thus theoretically complete.
However, although electric and magnetic fields were first introduced as mathematical constructs to simplify the description of mutual forces between charges, a natural question emerges from Maxwell's equations:...
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Electromagnetic Waves in Matter01:30

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Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
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Plane Electromagnetic Waves II01:29

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Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.
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The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion. 
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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在二维波导QED中强烈相互作用的光子.

Matija Tečer1, Marco Di Liberto1,2,3, Pietro Silvi1,2,3

  • 1Dipartimento di Fisica e Astronomia "G. Galilei", via Marzolo 8, I-35131 Padova, Italy.

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概括

在二维波导量子电动力学 (QED) 中,可以实现强大的光子-光子相互作用. 这项研究在二维原子阵列中证明了长期存在的两光子状态,证实了在更高维度中强大的光物质相互作用.

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相关实验视频

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科学领域:

  • 量子光学就是一个量子光学.
  • 凝聚物质物理学 凝聚物质物理学
  • 摄影系统是光子系统.

背景情况:

  • 在波导量子电动力学 (QED) 中的一维限制增强了光物质相互作用和非线性光学反应.
  • 由于发射的相空间增加,在更高的维度中减少了光子-光子相互作用,这构成了挑战.

研究的目的:

  • 调查在二维 (2D) 波导QED中实现强光子-光子相互作用的可能性.
  • 为了证明2D光子系统中新型量子现象的存在.

主要方法:

  • 理论分析2D正方形数组的原子与2D限制光合.
  • 研究光子-光子相互作用动态和新兴状态.
  • 在自由空间原子阵列中散射共振的分析.

主要成果:

  • 证明具有独特的二维特征的长寿命双光子排斥和结合状态.
  • 在自由空间原子阵列中观察这些相互作用的签名,作为亚辐射带内散射共振.
  • 在二维波导QED中强光子对光子相互作用的证实.

结论:

  • 强大的光子对光子相互作用可以在2D波导QED系统中实现.
  • 这些发现为检测2D光子环境中的这些相互作用提供了一个关键的签名.
  • 这项工作为在更高维的环境中探索量子非线性光学开辟了新的途径.