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摘要:
This paper shows a physically cogent model for electrical noise in resistors that has been obtained from Thermodynamical reasons. This new model derived from the works of Johnson and Nyquist also agrees with the Quantum model for noisy systems handled by Callen and Welton in 1951, thus unifying these two Physical viewpoints. This new model is a Complex or 2-D noise model based on an Admittance that considers both Fluctuation and Dissipation of electrical energy to excel the Real or 1-D model in use that only considers Dissipation. By the two orthogonal currents linked with a common voltage noise by an Admittance function, the new model is shown in frequency domain. Its use in time domain allows to see the pitfall behind a paradox of Statistical Mechanics about systems considered as energy-conserving and deterministic on the microscale that are dissipative and unpredictable on the macroscale and also shows how to use properly the Fluctuation-Dissipation Theorem.
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篇名 Revisiting the Classics to Recover the Physical Sense in Electrical Noise
来源期刊 现代物理(英文) 学科 数学
关键词 Quantum-Compliant Noise Model FLUCTUATION-DISSIPATION THEOREM Cause-Effect Action-Reaction
年,卷(期) 2011,(6) 所属期刊栏目
研究方向 页码范围 457-462
页数 6页 分类号 O1
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Quantum-Compliant
Noise
Model
FLUCTUATION-DISSIPATION
THEOREM
Cause-Effect
Action-Reaction
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研究来源
研究分支
研究去脉
引文网络交叉学科
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期刊影响力
现代物理(英文)
月刊
2153-1196
武汉市江夏区汤逊湖北路38号光谷总部空间
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1826
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0
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