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Thermal Noise at High Frequencies
Journal of Applied Physics, 1950Spenke's discussion of thermal noise from the point of view of the electron theory leads to a result which differs from Nyquist's original formula at frequencies ν such that hν/kT≧1. This discrepancy is due to the assumptions which Spenke made in his analysis.
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Thermal Noise and Biological Information
The Quarterly Review of Biology, 1987Thermal noise limits the efficiency of all information-handling systems. This principle, which is a routine consideration in electronics, is just as fundamental to the handling of highly specific information by living organisms. The rapid basal turnover rates of cells and intracellular proteins and the high energy consumption of regulatory organs ...
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2000
It is well known that electronic amplifiers introduce noise. The noise can be heard in any radio receiver tuned between stations. Some of the noise comes from the environment, but most of the noise is generated internally in the amplifiers. One source of amplifier noise is the shot noise that accompanies a flow of electric current.
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It is well known that electronic amplifiers introduce noise. The noise can be heard in any radio receiver tuned between stations. Some of the noise comes from the environment, but most of the noise is generated internally in the amplifiers. One source of amplifier noise is the shot noise that accompanies a flow of electric current.
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Thermal noise in mechanical experiments
Physical Review D, 1990The fluctuation-dissipation theorem is applied to the case of low-dissipation mechanical oscillators, whose losses are dominated by processes occurring inside the material of which the oscillators are made. In the common case of losses described by a complex spring constant with a constant imaginary part, the thermal noise displacement power spectrum ...
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Thermal Noise in Dissipative Media
Journal of Applied Physics, 1961To account for the spontaneous thermal fluctuations in a general dissipative medium, a current-source term may be introduced into Maxwell's equations. The dyadic correlation function of the source term is evaluated for a uniform medium at uniform temperature in which the driving field Ē and driven-current density J̄d are related by differential ...
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Mechanical thermal noise in coupled oscillators
Physics Letters A, 1997zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Majorana E., Ogawa Y.
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Thermal voltage noise in layered superconductors
Physical Review B, 1995Thermal voltage noise in the mixed state of type-II superconductors has been calculated taking into account fluctuation modes of nonrigid vortices. It has been shown that bending of vortices leads to new effects in thermal-voltage-noise spectra at high frequencies.
, Ashkenazy, , Jung, , Shapiro
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Thermal noise, shot noise and statistical mechanics
International Journal of Electronics, 1969ABSTRACT The relation between thermal noise, shot noise and the fluctuating occupation numbers encountered in statistical mechanics is explored. It is shown that the familiar thermal and shot noise formulae can be derived in a general way from these fluctuations.
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Proceedings of the IEEE, 1965
One purpose of this article is to develop the theory of black body radiation, thermal noise, and quantum noise from a few basic physical principles. A second purpose is to show how these results apply to certain areas such as antenna theory and ideal receivers. It is hoped that having this related material collected and presented in the language of the
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One purpose of this article is to develop the theory of black body radiation, thermal noise, and quantum noise from a few basic physical principles. A second purpose is to show how these results apply to certain areas such as antenna theory and ideal receivers. It is hoped that having this related material collected and presented in the language of the
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International Journal of Electrical Engineering & Education, 1979
This article describes some teaching laboratory investigations of thermal noise. It is shown that under certain conditions the thermal noise current from a resistor may be measured with considerable accuracy, allowing meaningful comparison with theoretical prediction. Brief discussion of relevant theory is included.
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This article describes some teaching laboratory investigations of thermal noise. It is shown that under certain conditions the thermal noise current from a resistor may be measured with considerable accuracy, allowing meaningful comparison with theoretical prediction. Brief discussion of relevant theory is included.
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