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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

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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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Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

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A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
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Neuronal Communication01:28

Neuronal Communication

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Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
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Real-World Application of Classical Conditioning01:15

Real-World Application of Classical Conditioning

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Classical conditioning not only includes the initial pairing of stimuli but also extends to more complex forms, such as higher-order conditioning. Higher-order conditioning involves creating associations beyond the primary conditioned stimulus, resulting in a chain of conditioned responses.
Higher-order, or second-order, conditioning occurs when a neutral stimulus becomes associated with an already established conditioned stimulus through repeated pairings. For instance, if a dog has been...
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Parallel Resonance01:23

Parallel Resonance

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The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
187
Phasor Arithmetics01:13

Phasor Arithmetics

243
Phasors and their corresponding sinusoids are interrelated, offering unique insights into the behavior of alternating current (AC) circuits. One way to understand this relationship is through the operations of differentiation and integration in both the time and phasor domains.
When the derivative of a sinusoid is taken in the time domain, it transforms into its corresponding phasor multiplied by j-omega (jω) in the phasor domain, where j is the imaginary unit, and ω is the angular...
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Updated: Jun 7, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

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量子プロセッサとリアルタイム通信の組み合わせ

Almudena Carrera Vazquez1, Caroline Tornow1,2, Diego Ristè3

  • 1IBM Quantum, IBM Research Europe - Zurich, Rüschlikon, Switzerland.

Nature
|November 20, 2024
PubMed
まとめ
この要約は機械生成です。

研究者は2つの量子プロセッサを リアルタイムでクラシックな接続で 実験的に結びつけました これは,エラーを軽減したダイナミック回路を可能にし,ハードウェアの制限を克服することによって,より大きく,より汎用的な量子状態を作成します.

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関連する実験動画

Last Updated: Jun 7, 2025

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Published on: September 8, 2023

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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科学分野:

  • 量子コンピューティング
  • 量子情報科学

背景:

  • 現在の量子ハードウェアは 騒々しい量子ビットや 短時間のコヒーレンスや 平面的な接続性によって 制限されています
  • 多くの量子アプリケーションには,単一の量子処理ユニット (QPU) で利用できるよりも多くの量子ビット接続性と量子ビットが必要です.
  • クラシック通信で複数のQPUを接続することは提案された解決策ですが,実験的な証拠がありません.

研究 の 目的:

  • 複数の QPU を使用して周期的な接続性を要求する量子状態の作成を実験的に実証する.
  • 誤差を軽減したダイナミック回路と,強化された量子計算のための回路切断の使用を検証する.
  • 条件付き量子ゲート操作のためのQPU間のリアルタイムクラシックリンクを確立する.

主な方法:

  • 誤差を軽減したダイナミック回路を導入し,中間回路の測定に基づく古典的な制御を行います.
  • 複数の量子処理ユニット (QPU) で量子状態を構築するために回路切断を使用した.
  • QPU間の条件操作を可能にするために,2つのQPU (それぞれ127クビット) を接続するリアルタイムクラシックリンクを確立しました.

主要な成果:

  • 2つのQPUで最大142クビットを使用した周期的な接続を必要とする量子状態を成功裏に作成しました.
  • QPU間のリアルタイム条件付き量子ゲート操作を測定結果に基づいて実証した.
  • エラーを軽減した制御フローを介して強化された量子ビット接続と命令セットを展示しました.

結論:

  • 複数の量子プロセッサを統合して より強力な量子コンピュータとして利用できます
  • リアルタイムのクラシックリンクによって可能になったエラーを軽減したダイナミック回路は,量子コンピューティングの汎用性とスケーラビリティを大幅に高めます.
  • この実験的実現は ハードウェアの制約により 以前は解決できなかった 複雑な量子問題への道を開きます