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

Joule-Thomson Effect01:21

Joule-Thomson Effect

10.7K
The Joule-Thomson effect, also known as the Joule-Kelvin effect, describes the temperature change of a fluid when it is forced through a valve or porous plug while keeping it in a thermally insulated environment. This experiment is called a throttling process. This is an important effect widely used in refrigeration and the liquefaction of gases.
This experiment forces high-pressure gas through a throttle valve or a porous plug to a lower-pressure region. The gas expands as it passes through to...
10.7K

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

Localized quasiparticles in a fluxonium with quasi-two-dimensional amorphous kinetic inductors.

Nature communications·2026
Same author

Development and Evaluation of Bluetooth Low-Energy Device for Electronic Encounter Metrics.

Journal of research of the National Institute of Standards and Technology·2024
Same author

Multipartite Entanglement in a Microwave Frequency Comb.

Physical review letters·2023
Same author

Entanglement Thresholds of Doubly Parametric Quantum Transducers.

Physical review applied·2023
Same author

Observation of Two-Mode Squeezing in a Traveling Wave Parametric Amplifier.

Physical review letters·2022
Same author

Direct observation of deterministic macroscopic entanglement.

Science (New York, N.Y.)·2021

相关实验视频

Updated: Mar 8, 2026

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

15.1K

侧带冷却超出了量子逆行极限的压缩光

Jeremy B Clark1, Florent Lecocq1, Raymond W Simmonds1

  • 1National Institute of Standards and Technology, Boulder, Colorado 80305, USA.

Nature
|January 13, 2017
PubMed
概括

研究人员用压缩光冷却了一个宏观的机械物体, 量子冷却的这一突破使得在更大的系统中探索量子物理学成为可能.

科学领域:

  • 量子物理学
  • 视觉机械
  • 量子光学

背景情况:

  • 量子真空的波动会引起诸如卡西米尔力和拉姆波动之类的物理效应.
  • 这些波动对机械系统的激光冷却施加了量子逆行极限.
  • 压缩光可以减少振幅波动,提供一种克服这个限制的方法.

研究的目的:

  • 通过压缩光来证明宏观机械物体低于量子逆行极限的冷却.
  • 探索压缩光在实现近地面状态冷却方面的潜力.

主要方法:

  • 使用微波腔光学系统.
  • 采用连贯的光状态进行初始冷却.
  • 用一个压缩的微波场, 由一个约瑟夫的参数放大器, 进一步冷却.
  • 通过异体光谱分析了机械侧带.

主要成果:

  • 通过连贯光冷却系统, 达到量子逆行极限的15%.
  • 使用压缩微波实现了低于量子反射极限的两个分贝以上的冷却.
  • 测量了0.19 ± 0.01的最小热占用率.

结论:

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

7.9K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

相关实验视频

Last Updated: Mar 8, 2026

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

15.1K
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

7.9K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K
  • 压缩光可以有效地冷却低于量子反射极限的宏观机械物体.
  • 该技术可以使低频机械振荡器更接近其运动基本状态.
  • 在更大,更大的系统中探索量子现象的新途径.