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相关概念视频

Types Of Superconductors01:28

Types Of Superconductors

909
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
909
Superconductor01:24

Superconductor

1.0K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.0K

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相关实验视频

Updated: May 22, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Published on: August 2, 2019

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全光超导量子位读取输出.

Georg Arnold1,2, Thomas Werner1, Rishabh Sahu1

  • 1Institute of Science and Technology Austria, Klosterneuburg, Austria.

Nature physics
|March 17, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种用于米基尔文温度的新型无线电光纤量子比特读取系统. 这一突破克服了超导量子硬件的可扩展性限制,通过实现高效,低噪音的信号传输,而无需冷微波组件.

关键词:
应用光学 应用光学量子比特 (Qubits) 是一个量子比特.

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科学领域:

  • 量子计算是一种量子计算.
  • 低温生化技术 (Cryogenics) 是一个非常重要的技术.
  • 光电学是指光电子产品.

背景情况:

  • 超导量子硬件面临着可扩展性挑战,因为在冷环境中对错误纠正的严格输入输出要求.
  • 现有的超冷电光链路用于量子比特控制和读取,由于效率低,带宽低或增加噪声而受到限制.
  • 经典的数据中心利用光纤互连来缓解网络瓶,激发了量子系统中的类似方法.

研究的目的:

  • 开发一种高效且可扩展的量子比特读取方法,用于在毫克尔文温度下运行的超导量子硬件.
  • 克服现有的电光链路的局限性,特别是低效率,带宽和噪声.
  • 展示一种与超导电路和电信波长光相兼容的新型无线电光纤方法.

主要方法:

  • 在米基尔文温度下运行的无线电光纤量子比特读取系统的实施.
  • 使用单一设备,同时在微波和光学频率之间进行上转换和下转换.
  • 在没有循环器的配置中展示全光学单射读数.

主要成果:

  • 在毫克尔文温度下成功实现了无线电光纤量子比特读取.
  • 通过单一设备的上转换/下转换系统,消除了对主动或被动冷微波设备的需求.
  • 无循环器,全光学单射读数的演示,没有观察到对量子比特状态的直接辐射影响.

结论:

  • 开发的无线电光纤量子比特读数与超导电路和电信波长光线兼容,解决了关键的可扩展性问题.
  • 这项技术对于建立模块化量子网络和为超导装置实现多重读取至关重要.
  • 该方法为未来量子计算架构中的高效和低噪音信号传输提供了有希望的解决方案.