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相关概念视频

The Quantum-Mechanical Model of an Atom02:45

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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
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An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
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The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
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Updated: Jun 21, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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通过使用改进的量子密钥分配来实现云安全的多级身份验证.

Ashutosh Kumar1, Garima Verma2

  • 1Department of Computer Science and Engineering, School of Computing, DIT University, Dehradun, Uttarakhand, India.

Network (Bristol, England)
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概括
此摘要是机器生成的。

本研究介绍了一种改进的量子密钥分发 (QKD) 方法,用于多级认证,增强云安全防范网络威胁. 与现有方法相比,新方法显著降低了关键妥协函数 (KCA) 攻击风险.

关键词:
多级身份验证多级身份验证云安全 云安全 云安全网络攻击 网络攻击改进了QKD的性能.

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科学领域:

  • 计算机科学 计算机科学
  • 网络安全 网络安全
  • 信息技术 信息技术 信息技术

背景情况:

  • 云计算提供了许多好处,但面临着重大的安全挑战,包括数据泄露和网络攻击.
  • 现有的身份验证机制难以提供强大的保护,以应对不断变化的云安全威胁.
  • 多级认证对于确保云环境的安全至关重要.

研究的目的:

  • 提出和评估一个改进的量子密钥分配 (QKD) 方法,用于云计算中的多层身份验证.
  • 通过使用一种新的QKD方法,增强针对各种风险的云安全性.
  • 加强云环境中的数据保护和系统完整性.

主要方法:

  • 实施了多级身份验证系统,采用了改进的QKD方法.
  • 在增强的QKD中使用了基于Ciphertext-Policy Attribute-Based Encryption (CP-ABE) 的方法来生成密钥.
  • 分析了使用关键妥协模型 (KCA) 攻击等级的先进模型对拟议方法的性能.

主要成果:

  • 改进的QKD方法实现了显著降低的KCA攻击评级0.3193.3,达到0.3193.
  • 这种评级优于现有的方法,例如CMMLA (0.7915),CPABE (0.8916),AES (0.5277),Blowfish (0.6144) 和ECC (0.4287).
  • 多级认证系统的安全性比当前的模型更强.

结论:

  • 提议的改进的QKD方法与多级认证有效地加强云安全.
  • 与现有解决方案相比,这种方法提供了对各种安全风险的优越防御.
  • 这些发现验证了改进后的QKD对安全云计算的增强和潜力.