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

Adiabatic Processes for an Ideal Gas01:18

Adiabatic Processes for an Ideal Gas

4.0K
When an ideal gas is compressed adiabatically, that is, without adding heat, work is done on it, and its temperature increases. In an adiabatic expansion, the gas does work, and its temperature drops. Adiabatic compressions actually occur in the cylinders of a car, where the compressions of the gas-air mixture take place so quickly that there is no time for the mixture to exchange heat with its environment. Nevertheless, because work is done on the mixture during the compression, its...
4.0K
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.8K
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
1.8K
Work Done in an Adiabatic Process01:20

Work Done in an Adiabatic Process

4.1K
Consider the adiabatic compression of an ideal gas in the cylinder of an automobile diesel engine. The gasoline vapor is injected into the cylinder of an automobile engine when the piston is in its expanded position. The temperature, pressure, and volume of the resulting gas-air mixture are 20 °C, 1.00 x 105 N/m2, and 240 cm3 , respectively. The mixture is then compressed adiabatically to a volume of 40 cm3. Note that, in the actual operation of an automobile engine, the compression is not...
4.1K
Pressure and Volume in an Adiabatic Process01:27

Pressure and Volume in an Adiabatic Process

3.3K
Free expansion of a gas is an adiabatic process. However, there are few differences between free expansion and adiabatic expansion. During free expansion, no work is done, and there is no change in internal energy. But, for an adiabatic expansion, work is done, and there is a change in internal energy. During an adiabatic process, the relation between the pressure and volume is obtained from the condition for the adiabatic process, that is,
3.3K
IR Spectrum Peak Broadening: Hydrogen Bonding01:23

IR Spectrum Peak Broadening: Hydrogen Bonding

1.8K
The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular...
1.8K
Optimizing Chromatographic Separations01:15

Optimizing Chromatographic Separations

897
Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
897

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

Erratum: Necessary and Sufficient Condition for Randomness Certification from Incompatibility [Phys. Rev. Lett. 135, 060201 (2025)].

Physical review letters·2026
Same author

Tropical Contraction of Tensor Networks as a Bell Inequality Optimization Toolset.

Physical review letters·2026
Same author

Projected entangled pair states for lattice gauge theories with dynamical fermions.

Communications physics·2026
Same author

Necessary and Sufficient Condition for Randomness Certification from Incompatibility.

Physical review letters·2025
Same author

Parameterized quantum circuits as universal generative models for continuous multivariate distributions.

NPJ quantum information·2025
Same author

Promoting Fluctuation Theorems into Covariant Forms.

Physical review letters·2025

相关实验视频

Updated: Jan 17, 2026

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
07:11

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis

Published on: August 19, 2021

3.0K

频谱差距优化用于增强的亚亚巴特状态准备的光谱差距优化

Kshiti Sneh Rai1,2, Jin-Fu Chen1,2, Patrick Emonts1,2,3,4

  • 1Universiteit Leiden, Instituut-Lorentz, P.O. Box 9506, 2300 RA Leiden, The Netherlands.

Physical review letters
|September 15, 2025
PubMed
概括

我们提出了一个高效的adiabatic算法来准备复杂的量子状态使用张量网络状态 (TNSs). 这种方法最大化了光谱间隙,克服了当前量子算法对多体物理学的局限性.

更多相关视频

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.0K
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.7K

相关实验视频

Last Updated: Jan 17, 2026

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
07:11

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis

Published on: August 19, 2021

3.0K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.0K
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

15.7K

科学领域:

  • 量子多体物理学 量子多体物理学
  • 量子信息科学 量子信息科学
  • 计算物理 计算物理

背景情况:

  • 准备非微不足道的量子状态对于研究量子多体物理学至关重要.
  • 阿迪亚巴特量子算法是一种常见的方法,但受到光谱间隙的限制.
  • 张量网络状态 (TNSs) 提供了一个强大的框架来表示复杂的量子状态.

研究的目的:

  • 提出一种高效的方法,以adiabatically准备张量网络状态 (TNSs).
  • 为了克服在亚亚巴特量子算法中的光谱差距限制.
  • 为了证明该方法对各种TNS和量子状态的适用性.

主要方法:

  • 开发一个高效的adiabatic算法用于TNS准备.
  • 通过优化父哈密尔顿构造来最大化光谱间隙.
  • 将该方法应用于一个维度的随机TNS,AKLT状态和GHZ状态.
  • 将哈密尔顿优化扩展到注射式和非注射式张量,利用对称性.

主要成果:

  • 成功演示了一种有效的基基算法来准备TNSs.
  • 在各种例子中展示了该方法的有效性,包括随机的TNS,AKLT和GHZ状态.
  • 证明了哈密尔顿优化的适用于注射式和非注射式张量.

结论:

  • 提出的高效的增益算法显著提高了TNSs的准备.
  • 这种方法为生成与多体物理学相关的复杂量子状态提供了一个强大的方法.
  • 哈密尔顿优化技术在量子状态准备中提供了灵活性和广泛的应用.