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関連する概念動画

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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. Schrödinger...
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis. This...
Conductors and Insulators01:19

Conductors and Insulators

Some materials may easily let electrical charges pass through them, while others obstruct their flow. The former are called conductors and the latter insulators. The atomic structures of materials determine whether they are conductors or insulators of electricity.
Most metals are conductors. Their atomic configuration is such that one or more electron(s) are loosely bound to the nucleus in each atom. Thus, a sea of mobile electrons are available in them, known as free electrons. Their easy...
Superconductor01:24

Superconductor

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...
Types Of Superconductors01:28

Types Of Superconductors

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...
Insulation Coordination01:23

Insulation Coordination

Insulation coordination is the process of matching electric equipment's insulation strength with protective device characteristics to protect the equipment against expected overvoltages. This selection is based on engineering judgment and cost. Equipment can generally withstand short-duration high transient overvoltages, but repeated tests with identical waveforms can yield inconsistent results. As a result, standard impulse voltage waveforms are used for testing, defined by specific times for...

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関連する実験動画

Updated: May 12, 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

超絶縁材と量子同期について

Valerii M Vinokur1, Tatyana I Baturina, Mikhail V Fistul

  • 1Material Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA. vinokour@anl.gov

Nature
|April 4, 2008
PubMed
まとめ
この要約は機械生成です。

不規則な超伝導フィルムがクーパー対の断熱器に変換される. 有限な温度下では,この状態は超導体状態と二重で,無限の抵抗を持つ超絶縁状態になります.

さらに関連する動画

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

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

Published on: August 2, 2019

関連する実験動画

Last Updated: May 12, 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

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

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

Published on: August 2, 2019

科学分野:

  • 凝縮物質物理学 凝縮物質物理学
  • 量子現象とは,量子現象である.
  • マテリアルサイエンス 材料科学

背景:

  • 同期振動器は,自然と量子力学において根本的なものです.
  • 薄い超伝導膜の乱れは,通常のマトリックス内の超伝導島を作ります.
  • 調節障害は,超伝導状態から絶縁状態への移行を駆動し,移行の近くでクーパー対の絶縁体を形成します.

研究 の 目的:

  • クーパー対の断熱器から超絶縁状態への移行を調査する.
  • タイタニウムニトリドフィルムにおけるこの移行の実験的証拠を提示する.
  • 超絶縁状態と超伝導状態の二元性を探求する.

主な方法:

  • 亜酸化チタンの薄膜の製造と特徴付け.
  • 温度,磁場,電圧の関数として電気抵抗と伝導性を測定する.
  • 超伝導的順序パラメータ相の同期分析.

主要な成果:

  • クーパー対の断熱器は,特定の有限な温度で無限の抵抗を持つ超断熱状態に移行します.
  • 超絶縁状態は,亜酸化チタンのフィルムで観察される.
  • この超絶縁状態は,超伝導状態と二重の性質を示し,臨界磁場と臨界電圧によって破壊されます.

結論:

  • 無限の抵抗を持つ新しい超絶縁状態が存在し,クーパー対の絶縁状態からアクセスできます.
  • 超絶縁状態の性質は,超伝導状態と類似しており,根本的な二元性を強調しています.
  • この研究は,量子レベルでの物質の複雑な行動に関する新しい洞察を提供します.