Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Fermi Level Dynamics01:12

Fermi Level Dynamics

244
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
244
Fermi Level01:18

Fermi Level

584
The Fermi-Dirac function is represented by an S-shaped curve indicating the probability of an energy state being occupied by an electron at a given temperature. The Fermi level is the energy level at which there is a fifty percent chance of finding an electron, and it is positioned between the lower-energy valence band and the higher-energy conduction band.
At absolute zero temperature, electrons fill all energy states up to the Fermi level, leaving upper states empty. As the temperature rises,...
584
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

973
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.
973
Equilibrium Conditions for a Particle01:23

Equilibrium Conditions for a Particle

1.1K
When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
1.1K
Thermal Sigmatropic Reactions: Overview01:16

Thermal Sigmatropic Reactions: Overview

2.1K
Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
2.1K
Free Energy Changes for Nonstandard States03:25

Free Energy Changes for Nonstandard States

11.4K
The free energy change for a process taking place with reactants and products present under nonstandard conditions (pressures other than 1 bar; concentrations other than 1 M) is related to the standard free energy change according to this equation:
 
where R is the gas constant (8.314 J/K·mol), T is the absolute temperature in kelvin, and Q is the reaction quotient. This equation may be used to predict the spontaneity of a process under any given set of conditions.
Reaction Quotient...
11.4K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Probing quantum floating phases in Rydberg atom arrays.

Nature communications·2025
Same journal

Interplay of Anisotropy, Dzyaloshinskii Moriya Interaction and Symmetry breaking Fields in a 2D XY Ferromagnet.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Single-molecule electron transport near a charge-trapping orbital-level alignment.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Δ<sub>T</sub>Noise as a Robust Diagnostic for Chiral, Helical and Trivial Edge Modes.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

A Quantum Framework for Negative Magnetoresistance in Multi-Weyl Semimetals.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Magnetic anisotropy and electronic structure in surface-supported single rare-earth atom magnets: a topical review.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Modeling thermal transport in AlN/GaN superlattices and heterostructures with machine-learned force fields.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
查看所有相关文章

相关实验视频

Updated: Jun 27, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.5K

对于费米子的张量重规范化组.

Shinichiro Akiyama1,2, Yannick Meurice3, Ryo Sakai4

  • 1Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.

Journal of physics. Condensed matter : an Institute of Physics journal
|May 3, 2024
PubMed
概括
此摘要是机器生成的。

我们将为具有相对论费米子的格子场理论引入先进的张量重规范化组 (TRG) 方法. 这些技术增强了复杂模型的模拟,包括哈伯德模型.

关键词:
费尔米哈巴德模型的模型格拉斯曼的路径积分.格子测量理论 格子测量理论相对主义的格子费米翁.标志问题 标志问题张量网络是一个张量网络.

更多相关视频

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.4K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.7K

相关实验视频

Last Updated: Jun 27, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.5K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.4K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.7K

科学领域:

  • 计算物理 计算物理
  • 量子场理论 量子场理论
  • 凝聚物质物理学 凝聚物质物理学

背景情况:

  • 格子场理论对于研究量子系统至关重要.
  • 模拟相对论费米子和格拉斯曼变量带来了重大的计算挑战.
  • 现有的张量网络方法需要对复杂模型进行优化.

研究的目的:

  • 审查和扩展张量重规范化组 (TRG) 方法用于格子场理论.
  • 为了适应TRG用于具有相对论费米子和格拉斯曼变量在任意维度中的模型.
  • 为了证明新的TRG技术对各种费米子模型的适用性.

主要方法:

  • 对基本张量重规范化组 (TRG) 概念的审查.
  • 纠过,循环优化和债券权重技术的应用.
  • 使用Grassmann张量网络的矩阵积分分解.
  • 对2D威尔逊-马约拉纳费米子和多种风味的Gross-Neveu模型的测试方法.

主要成果:

  • 证明了先进的TRG方法对格子场理论的成功应用.
  • 在2D威尔逊-马约拉纳和多种风味的Gross-Neveu模型上验证了新技术.
  • 扩展适用于1+1和2+1维的费米奥尼克哈伯德模型.

结论:

  • 先进的张量重规范化组 (TRG) 方法提供了一个强大的方法来模拟用费米子模拟格子场理论.
  • 开发的技术克服了模拟复杂费米离子系统之前的局限性.
  • 这些方法为量子多体物理学的未来研究提供了可扩展和高效的框架.