多体超辐射和动态镜像对称性在波导QED中断
Silvia Cardenas-Lopez1, Stuart J Masson1, Zoe Zager1
1Department of Physics, Columbia University, New York, New York 10027, USA.
Physical review letters
|August 4, 2023
概括
我们发现,一维浴中的发射器阵列可以呈现迪克超辐射,以快速光子爆发的形式释放能量. 这种多体超辐射涉及放大初始波动,并导致光子发射方向的对称性破裂.
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
- 多体物理学的多体物理学.
背景情况:
- 多个相互作用的量子发射器的衰变动态尚未完全理解.
- 迪克超辐射描述了来自反转系统的集体辐射,导致快速光子爆发.
研究的目的:
- 为了在与一维浴相连的发射器阵列中研究迪克超辐射.
- 为了确定多体超辐射的最小条件.
主要方法:
- 辐射器与浴相互作用的理论分析.
- 导出超辐射爆发形成的条件.
- 检查有序和无序的发射器组合.
主要成果:
- 基于发射器数量,波导度和光学深度,确定了多体超辐射的条件.
- 观察到初始波动的放大驱动超辐射衰变.
- 证明了自发的镜面对称性在光子发射方向上的破坏.
结论:
- 多体超辐射在一维系统中是可以实现的.
- 超辐射爆发可以产生与异常量子统计学相关的光子状态.
- 光子发射中的对称性破坏为超辐射现象提供了证据.
相关概念视频
The de Broglie Wavelength
26.0K
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...
26.0K
The Wave Nature of Light
49.3K
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.
49.3K
Standing Waves in a Cavity
956
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:
956
Symmetry in Maxwell's Equations
3.5K
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
3.5K
Electromagnetic Waves in Matter
3.0K
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.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
3.0K
Electromagnetic Wave Equation
1.2K
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:...
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:...
1.2K


