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相关概念视频

Ion Channels01:19

Ion Channels

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The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...
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The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing...
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Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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相关实验视频

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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一个开放系统的量子模拟器与被困的离子.

Julio T Barreiro1, Markus Müller, Philipp Schindler

  • 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria.

Nature
|February 26, 2011
PubMed
概括
此摘要是机器生成的。

研究人员开发了一个量子模拟工具箱,使用被困离子来设计开放的量子系统. 这允许控制的相互作用和纠状态的创建,推进量子计算和模拟能力.

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科学领域:

  • 量子信息科学 量子信息科学
  • 量子计算是一种量子计算.
  • 多体物理多体物理

背景情况:

  • 控制量子系统对于科学进步和技术应用至关重要.
  • 在隔离和控制量子系统方面取得的进展是显著的,特别是在创造纠方面.
  • 通过受控环境合来设计开放量子系统的动力学是一个尚未探索的领域.

研究的目的:

  • 开发一个用于模拟开放量子系统的实验工具箱.
  • 通过对环境进行受控合来设计多粒子量子系统的动力学.
  • 探索开放系统量子模拟和计算的新前景.

主要方法:

  • 使用了一个被困离子量子计算架构.
  • 实现的多量子比特门与光学送相结合.
  • 结合连贯运算与消散过程来模拟开放的量子系统.

主要成果:

  • 展示了一个实验工具箱,用于模拟多达五个量子比特的开放量子系统.
  • 通过纠状态的消散性准备来设计开放系统动态.
  • 模拟了连贯的多体自旋相互作用,并进行了量子非破坏测量.

结论:

  • 开发的工具箱使开放量子系统动态的工程成为可能.
  • 控制散射与连贯操作相结合,为量子模拟开辟了新的途径.
  • 这项工作推进了开放系统量子模拟和计算的能力.