Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

42.7K
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
42.7K
Measurement: Standard Units03:38

Measurement: Standard Units

69.5K
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
69.5K
Measurement: Derived Units03:02

Measurement: Derived Units

47.7K
The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units.
47.7K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

43.8K
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.
43.8K
Continuous -time Fourier Transform01:11

Continuous -time Fourier Transform

404
The Fourier series is instrumental in representing periodic functions, offering a powerful method to decompose such functions into a sum of sinusoids. This technique, however, necessitates modification when applied to nonperiodic functions. Consider a pulse-train waveform consisting of a series of rectangular pulses. When these pulses have a finite period, they can be accurately represented by a Fourier series. Yet, as the period approaches infinity, resulting in a single, isolated pulse, the...
404
BIBO stability of continuous and discrete -time systems01:24

BIBO stability of continuous and discrete -time systems

511
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
511

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Mechanical resonator-based quantum computing.

Science (New York, N.Y.)·2026
Same author

Theory-independent monitoring of the decoherence of a superconducting qubit with generalized contextuality.

Nature communications·2026
Same author

A mechanical qubit.

Science (New York, N.Y.)·2024
Same author

Deriving Three-Outcome Permutationally Invariant Bell Inequalities.

Entropy (Basel, Switzerland)·2024
Same author

Engineering multimode interactions in circuit quantum acoustodynamics.

Nature physics·2024
Same author

Probing quantum correlations in many-body systems: a review of scalable methods.

Reports on progress in physics. Physical Society (Great Britain)·2023
Same journal

Switchable band alignment in 2D-perovskite/WS<sub>2</sub>heterostructures for tunable exciton transport and valley polarization.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Chiral graviton modes in fermionic Fractional Chern Insulators.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Bound states in the continuum in plasmonic structures.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Unlocking complex optical vortices with flat optics.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Pseudo-Hermitian magnon dynamics.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Uniaxial-stress-induced magnetic transitions in the triangular-lattice antiferromagnet PdCrO<sub>2</sub>.

Reports on progress in physics. Physical Society (Great Britain)·2026
関連記事をすべて見る

関連する実験動画

Updated: Sep 9, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.5K

連続変数系による量子計測

Matteo Fadel1, Noah Roux2, Manuel Gessner3

  • 1Department of Physics, ETH Zürich, Otto-Stern-Weg 1, Zurich, Zürich, 8092, SWITZERLAND.

Reports on progress in physics. Physical Society (Great Britain)
|August 29, 2025
PubMed
まとめ
この要約は機械生成です。

量子メトロロジーは,量子情報を用いて測定精度を高めます. この研究では,移動と回転の推定に焦点を当てて,連続変数量子センシングの精度限界と最適な戦略を探索します.

キーワード:
連続変数量子情報量子メトロロジー量子センシング

さらに関連する動画

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

14.6K
Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
09:36

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

Published on: June 25, 2021

3.2K

関連する実験動画

Last Updated: Sep 9, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.5K
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

14.6K
Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
09:36

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

Published on: June 25, 2021

3.2K

科学分野:

  • 量子物理学
  • 量子情報科学
  • 計測とセンシング

背景:

  • 量子メトロロジーは 量子情報を活用して 標準的な測定精度の限界を超えています
  • 鍵となる戦略は,非古典的な量子状態の準備と,最適な測定観測物体の設計です.
  • 連続変数量子システムは 先進的なセンシングアプリケーションのための有望なプラットフォームを提供します.

研究 の 目的:

  • 量子連続変数の単一モードを用いた量子計測とセンシングにおける精度限界と最適な戦略を調査する.
  • 様々な量子技術の重要なパラメータである 移動と回転の推定を分析する.
  • 基本的精度制限と実用的な推定戦略を比較する.

主な方法:

  • 量子フィッシャー情報を用いた精度限界の分析
  • フォックやコヒーレント状態のガウス状態とスーパーポジションに対する感度評価.
  • 量子限定精度と,さまざまな測定観測値 (ホモダイン,光子数,対数) を用いた瞬間ベースの推定値の比較

主要な成果:

  • 連続変数系における移動と回転を推定するための精度限界の定量化.
  • センシングにおける異なる量子状態 (ガウス,フォック,コヒーレント状態の重置) の性能の評価.
  • 理論的な量子精度限界と実用的な推定戦略の比較,測定選択の影響を強調する.

結論:

  • 連続変数量子計測学の最適な戦略と基本的な精度限界が特定されています.
  • この研究は,現在および新興の量子プラットフォームを使用して高精度測定を達成する実用的な可能性についての洞察を提供します.
  • この結果は,量子光,トラップされたイオン,機械的な振動器など,様々な実験システムに関連しています.