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関連する概念動画

Electron Configuration of Multielectron Atoms03:26

Electron Configuration of Multielectron Atoms

56.4K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
56.4K
Energy Bands in Solids01:01

Energy Bands in Solids

1.3K
Isolated atoms have discrete energy levels that are well described by the Bohr model. And, it quantifies the energy of an electron in a hydrogen atom as En. Higher quantum numbers 'n' yield less negative, closer electron energy levels.
 Band Formation:
When atoms are brought close together, as in a solid, these discrete energy levels begin to split due to the overlap of electron orbitals from adjacent atoms. This split occurs because of the Pauli exclusion principle, which states...
1.3K
Electron Configurations02:46

Electron Configurations

20.6K
Electron configurations and orbital diagrams can be determined by applying the Aufbau principle (each added electron occupies the subshell of lowest energy available), Pauli exclusion principle (no two electrons can have the same set of four quantum numbers), and Hund’s rule of maximum multiplicity (whenever possible, electrons retain unpaired spins in degenerate orbitals).
The relative energies of the subshells determine the order in which atomic orbitals are filled (1s, 2s, 2p, 3s, 3p,...
20.6K
Electron Carriers01:24

Electron Carriers

86.4K
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
86.4K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

49.3K
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 hydrogen spectra.
49.3K
Electron Orbital Model01:18

Electron Orbital Model

69.4K
Orbitals are the areas outside of the atomic nucleus where electrons are most likely to reside. They are characterized by different energy levels, shapes, and three-dimensional orientations. The location of electrons is described most generally by a shell or principal energy level, then by a subshell within each shell, and finally, by individual orbitals found within the subshells.
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
69.4K

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

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固体量子ビットプラットフォームとしての固体ネオン上の単一の電子

Xianjing Zhou1, Gerwin Koolstra2, Xufeng Zhang1

  • 1Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA.

Nature
|May 4, 2022
PubMed
まとめ
この要約は機械生成です。

研究者らは,固体ネオンの単一の電子を使用して,新しい量子ビット (クビット) を開発しました. この電子対ネオンのプラットフォームは 量子コンピューティングの応用で 約束されたコヒーレンスと稼働時間を示しています

さらに関連する動画

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
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関連する実験動画

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

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科学分野:

  • 量子コンピューティングのハードウェア
  • 固体量子情報システム
  • 電子の量子状態

背景:

  • 量子コンピュータの開発は 高度な量子ビットの構成要素に依存しています
  • 電子は基本的な量子情報伝達器ですが その性能は物質環境に依存します
  • 既存の量子ビットプラットフォームは,長期間の一貫性,迅速な動作,およびスケーラビリティを同時に達成する上で課題に直面しています.

研究 の 目的:

  • 固体ネオンに閉じ込められた 単一の電子を使って 新しい量子ビットのプラットフォームを 実験的に実現する
  • 電子とネオンのシステムを 量子力学構造に統合する
  • 電子の運動状態とマイクロ波フォトンの強い結合を証明する.

主な方法:

  • 超クリーンな固体ネオン表面に単一の電子を閉じ込めることを実験的に実現した.
  • 電子トラップを回路の量子力学構造に統合する.
  • チップ上の超伝導共振器を使用して,量子ビットゲート操作と分散読み取りを実行します.

主要な成果:

  • 単一の電子運動状態と単一のマイクロ波光子間の強い結合を達成しました.
  • 15マイクロ秒のエネルギー放緩時間 (T1) を測定した.
  • 200ナノ秒を超える相相合時間 (T2) を測定した.

結論:

  • 電子対固体・ネオン量子ビットのプラットフォームは 競争力のある性能を示し, 充電量子ビットの最先端に近づいています
  • このプラットフォームは,スケーラブルな量子コンピュータと量子情報システムを構築するための有望な新しい道を提供します.
  • 達成されたコヒーレンスと動作時間は,カスタマイズされた環境における堅固な量子情報キャリアとしての電子の可能性を強調しています.