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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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Quantum Numbers02:43

Quantum Numbers

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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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In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1  triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
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The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
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The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
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Singularity Functions for Shear

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In structural analysis, singularity functions are crucial in simplifying the representation of shear forces in beams under discontinuous loading. These functions describe discontinuous  variations in shear force across a beam with varying loads by using a single mathematical expression, regardless of the complexity of the loading conditions. The singularity functions are derived from creating a free-body diagram of the beam and then making conceptual cuts at specific points to examine the...
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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在当前硬件上实施量子秘密共享.

Jay Graves1,2,3, Mike Nelson3, Eric Chitambar3

  • 1Department of Physics, Morehouse College, Atlanta, GA 30314, USA.

Entropy (Basel, Switzerland)
|October 28, 2025
PubMed
概括
此摘要是机器生成的。

这项研究在真实量子硬件上测试了量子秘密共享. 某些方案表现相似,在重建量子秘密方面取得了70-75%的成功率.

关键词:
减轻错误的错误缓解方法量子计算是一种量子计算.量子密码学 量子密码学量子错误的纠正 量子错误的纠正量子秘密共享 (QSS) 是指量子秘密的共享.量子比特是指一个量子比特.这里是Qutrit,Qutrit.

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科学领域:

  • 量子信息科学 量子信息科学
  • 量子密码学 量子密码学
  • 量子计算硬件 量子计算硬件

背景情况:

  • 量子秘密共享 (QSS) 对于安全的量子信息存储至关重要.
  • 理论上的QSS已经发展良好,但实际的设备性能尚未得到充分探索.
  • 对于QSS计划的现实世界实施挑战还不太清楚.

研究的目的:

  • 提供QSS编码和解码电路的教学描述.
  • 在IBM的127量子比特布里斯班量子处理器上测试各种QSS代码的性能.
  • 通过SWAP测试和纠忠实度来评估QSS实施质量.

主要方法:

  • 在超导量子处理器上实现并测试了不同的量子秘密共享代码.
  • 利用SWAP测试来比较重建的量子状态与理想状态的忠实性.
  • 评估纠忠实度,以量化QSS代码如何保持量子相关性.
  • 使用中电路测量与延迟电路测量进行比较的方案.

主要成果:

  • 一个 ((3,5)) 门和一个7量子比特非门方案显示了可比性能.
  • 这两个成功的方案都在重建秘密的SWAP测试中取得了70-75%的合格率.
  • A ((2,3)) qutrit值方案表现不佳,原因是多量子比特门复杂度增加.
  • 研究了中间电路和延迟电路测量策略之间的性能差异.

结论:

  • 量子秘密共享方案可以在当前的量子硬件上实现,成功率中等.
  • 编码/解码电路的复杂性显著影响杂量子设备上的QSS性能.
  • 需要进一步的研究来优化QSS协议,以便用于实际的量子计算应用.