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相关概念视频

Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

98
A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
98
Inertia Tensor01:24

Inertia Tensor

420
The concept of the inertia tensor is employed to depict the mass distribution and rotational inertia of a solid or rigid object. This tensor is expressed through a three-by-three matrix. Each component within this matrix corresponds to varying moments of inertia about specific axes.
The diagonal components of the inertia tensor matrix represent the moments of inertia concerning the principal axes of the object. These primary axes are defined as the axes where the object experiences the least...
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Vector Algebra: Method of Components01:08

Vector Algebra: Method of Components

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It is cumbersome to find the magnitudes of vectors using the parallelogram rule or using the graphical method to perform mathematical operations like addition, subtraction, and multiplication. There are two ways to circumvent this algebraic complexity. One way is to draw the vectors to scale, as in navigation, and read approximate vector lengths and angles (directions) from the graphs. The other way is to use the method of components.
In many applications, the magnitudes and directions of...
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Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

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A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
587
Equivalent Circuits for Practical Transformers01:28

Equivalent Circuits for Practical Transformers

404
The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
404
Extraction: Partition and Distribution Coefficients01:14

Extraction: Partition and Distribution Coefficients

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The distribution law or Nernst's distribution law is the law that governs the distribution of a solute between two immiscible solvents. This law, also known as the partition law, states that if a solute is added to the mixture of two immiscible solvents at a constant temperature, the solute is distributed between the two solvents in such a way that the ratio of solute concentrations in the solvents remains constant at equilibrium.
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Updated: Jun 17, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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最佳树张量网络运营商用于张量网络模拟:开放量子系统的应用.

Weitang Li1,2, Jiajun Ren3, Hengrui Yang4

  • 1School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, People's Republic of China.

The Journal of chemical physics
|August 6, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种有效的算法,用于构建最佳树张量网络运营商 (TTNO). 这种方法可以准确地模拟开放量子系统,证明线性缩放的计算成本.

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科学领域:

  • 量子力学就是量子力学.
  • 计算物理学的计算物理.
  • 凝聚物质理论 凝聚物质理论

背景情况:

  • 树张量网络状态 (TTNS) 对于模拟复杂的量子系统至关重要.
  • 构建树张量网络运营商 (TTNO) 的现有方法可能是计算密集的.
  • 开放量子系统的高效模拟对于理解自旋放松和电荷传输等现象至关重要.

研究的目的:

  • 开发一种算法,用于自动构建最佳和精确的树张量网络运营商 (TTNO).
  • 应用开发的TTNO结构来模拟开放的量子系统,包括旋转放松和电荷传输.
  • 证明新方法的计算效率和可扩展性.

主要方法:

  • 基于双部分图的最小顶点覆盖的算法,以实现最佳的TTNO构造.
  • 模拟使用离散环境模式和科尔-戴维森光谱密度的开放量子系统.
  • 使用热场动态的温度效应的整合.

主要成果:

  • 对于产品和量子运算符,成功自动构建最佳和精确的TTNO.
  • 精确模拟自旋玻色子模型中的自旋放松动力学和分子结点中的电荷传输.
  • 演示了计算成本的线性缩放与离散环境模式的数量.

结论:

  • 开发的算法提供了一个高效和准确的方法来构建TTNO.
  • 该方法使开放量子系统的准确和可扩展的模拟成为可能.
  • 这项工作推进了对凝聚物质和分子系统中复杂量子现象的模拟能力.