相关实验视频
Updated: Jun 24, 2026

17:14
Compact Quantum Dots for Single-molecule Imaging
Published on: October 9, 2012
18.6K
在目标腔中的明亮的单光子斯基米昂源
Jiantao Ma1, Shunfa Liu1, Chengjie Lu2
1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-Sen University, Guangzhou, 510275, China.
Nanophotonics (Berlin, Germany)
|December 17, 2025
概括
研究人员开发了一种纳米光子设备,使用量子发射器和共振器产生光学天体. 这一突破使得可扩展的,芯片上的量子技术能够实现可靠的信息传输和处理.
科学领域:
- 量子光学是一种量子光学.
- 纳米光子学 纳米光子学
- 拓学光子学 拓学光子学
背景情况:
- 光学 skyrmions 是具有拓性质的结构光场,为先进的信息编码和量子相互作用提供了潜力.
- 目前的 skyrmion 生成方法往往涉及复杂和大规模的系统,限制了它们与可扩展量子技术的整合.
研究的目的:
- 提出和演示一种新的纳米光子方案,用于在亚波长尺度上高效地产生光学 skyrmions.
- 为了使单光子 skyrmions及其更高层次的扩展在芯片上的量子应用的创建.
主要方法:
- 利用半导体腔量子电力学,将一个循环极化量子发射器合到一个同心的目标共振器上.
- 通过调整单光子源的激发位置来控制 skyrmion 数.
- 通过修改振荡器中中央盘的半径来调整更高阶的 skyrmion 状态.
主要成果:
- 有效地生成单光子斯托克斯向量 skyrmions 和它们在亚波长尺度上的高阶扩展.
- 在+2和-2.2之间持续切换skyrmion数的证明.
- 建立了一种方法来访问更高层次的 skyrmion 状态.
结论:
- 拟议的纳米光子方案为集成量子拓状态平台提供了一个实用的设备架构.
- 这项工作为在芯片上拓键和量子读取中的量子 skyrmions 奠定了基础.
- 为拓保护的量子通信和芯片上的量子信息处理提供了一个新的范式.
相关概念视频
VSEPR Theory and the Effect of Lone Pairs
Effect of Lone Pairs of Electrons on Molecule Geometry
Atomic Nuclei: Nuclear Spin
All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...
Atomic Nuclei: Nuclear Magnetic Moment
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
Atomic Nuclei: Nuclear Spin State Overview
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
Atomic Nuclei: Nuclear Spin State Population Distribution
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
Atomic Absorption Spectroscopy: Radiation and Light Sources
Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

