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関連する概念動画

The Uncertainty Principle04:08

The Uncertainty Principle

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Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
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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 hydrogen spectra.
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The de Broglie Wavelength02:32

The de Broglie Wavelength

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In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
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Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

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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.
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The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

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The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
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Bias01:22

Bias

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Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected or encouraged over others in sampling or testing. Bias can occur during any research phase, including study design, data collection, analysis, and publication.
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
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関連する実験動画

Updated: Jul 23, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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量子真空をバイアスして,マクロスコピック確率分布を制御する.

Charles Roques-Carmes1, Yannick Salamin1,2, Jamison Sloan1

  • 1Research Laboratory of Electronics, MIT, Cambridge, MA, USA.

Science (New York, N.Y.)
|July 13, 2023
PubMed
まとめ

量子場理論は,光学パラメトリック振動器 (OPO) の真空レベルのバイアス場を使用して制御可能な量子ランダム性を可能にします. この突破により 精密な確率制御と サブフォトンレベルの フィールドセンシングが可能になります

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In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence
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In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence

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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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関連する実験動画

Last Updated: Jul 23, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

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In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence
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In Situ Measurement of Vacuum Window Birefringence using 25Mg+ Fluorescence

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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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科学分野:

  • 量子光学
  • 量子情報科学

背景:

  • 量子場理論は 固有の電磁場変動を仮定しています
  • 制御可能な確率分布は,ランダム性アプリケーションにとって非常に重要です.
  • マルチステーブルな光学システムは 量子ランダム性生成の可能性を秘めています

研究 の 目的:

  • 量子ランダム性の制御可能な源を 証明する
  • 光学パラメータ振動器 (OPO) でこの技術の適用を調査する.
  • サブフォトンレベルの フィールドセンシングの可能性を 探求するためです

主な方法:

  • マルチステーブル光学システム (OPO) に真空レベルのバイアスフィールドを注入する.
  • バイアスパルスを使って 平均"フォトン未満です
  • OPOの2つの出力状態の確率を制御する.
  • サブフォトンレベルのフィールドの 時間の形を再構築する

主要な成果:

  • 制御可能な量子ランダム性を OPOで成功裏に生成した
  • サブフォトンレベルのフィールドを使用して出力状態の確率を正確に制御することを実証した.
  • 弱い電磁場を 再構築する能力を示した

結論:

  • 真空レベルのバイアスフィールドは 制御可能な量子ランダム性のための 新しいプラットフォームを提供します
  • このアプローチは,量子システムにおける確率的結果の正確な制御を可能にします.
  • この研究は 弱いフィールドセンシングと確率計算の道を開きます