Last Updated:2025/12/05

Even in a perfectly quiet laboratory, Johnson-Nyquist noise limits the sensitivity of low-temperature amplifiers used to detect tiny signals.

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Even in a perfectly quiet laboratory, Johnson-Nyquist noise limits the sensitivity of low-temperature amplifiers used to detect tiny signals.

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完全に静かな実験室でも、熱雑音(導体内の電荷担体、通常は電子の熱的擾動によって平衡状態で発生し、印加電圧に関係なく生じる電気的雑音)が微小信号を検出するために使われる低温アンプの感度を制限します。

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