Concentration and Size of Photons from Particle Interpretation of Blackbody Radiation

Blackbody radiation, temperature, and thermodynamic equilibrium give a tightly coupled description of systems (atmospheres, volumes, surfaces) that obey Boltzmann statistics. They provide descriptions of systems when Boltzmann statistics apply, either approximately or nearly exactly. These apply most of the time in the Earth’s stratosphere and troposphere, and in other planetary atmospheres as long as the density is sufficient that collisions among atmospheric molecules, rather than photochemical and photophysical properties, determine the energy populations of the ensemble of molecules. Thermodynamic equilibrium and the approximation of local thermodynamic equilibrium are introduced. Boltzmann statistics, blackbody radiation, and Planck’s law are described. The chapter introduces the Rayleigh-Jeans limit, description of noise sources as temperatures, Kirchoff’s law, the Stefan-Boltzmann constant, and Wien’s law.

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Revisiting cosmic microwave background radiation using blackbody radiation inversion

Scientific Reports ◽

10.1038/s41598-020-80195-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Koustav Konar ◽

Kingshuk Bose ◽

R. K. Paul

Keyword(s):

Temperature Distribution ◽

Cosmic Microwave Background ◽

Background Radiation ◽

Big Bang ◽

Blackbody Radiation ◽

Microwave Background ◽

Background Spectrum ◽

Microwave Background Radiation ◽

Mathematical Process

AbstractBlackbody radiation inversion is a mathematical process for the determination of probability distribution of temperature from measured radiated power spectrum. In this paper a simple and stable blackbody radiation inversion is achieved by using an analytical function with three determinable parameters for temperature distribution. This inversion technique is used to invert the blackbody radiation field of the cosmic microwave background, the remnant radiation of the hot big bang, to infer the temperature distribution of the generating medium. The salient features of this distribution are investigated and analysis of this distribution predicts the presence of distortion in the cosmic microwave background spectrum.

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Correlation-like Demodulation of Fiber Fabry-Perot Sensor Based on Blackbody Radiation Light Source

IEEE Sensors Journal ◽

10.1109/jsen.2021.3053049 ◽

2021 ◽

pp. 1-1

Author(s):

Yuru Chen ◽

Xiaohua Lei ◽

Lei Xie ◽

Tao Chena ◽

Xianming Liu ◽

...

Keyword(s):

Light Source ◽

Blackbody Radiation ◽

Fabry Perot

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Vacuum polarization and particle creation in the presence of a potential step

International Journal of Modern Physics A ◽

10.1142/s0217751x16410311 ◽

2016 ◽

Vol 31 (02n03) ◽

pp. 1641031 ◽

Cited By ~ 2

Author(s):

S. P. Gavrilov ◽

D. M. Gitman

Keyword(s):

Electric Potential ◽

Canonical Quantization ◽

Particle Creation ◽

Pair Creation ◽

Dirac Field ◽

Potential Step ◽

Electron Positron ◽

Physical Impact ◽

Particle Interpretation ◽

Electron Positron Pair

We consider QED with strong external backgrounds that are concentrated in restricted space areas. The latter backgrounds represent a kind of spatial x-electric potential steps for charged particles. They can create particles from the vacuum, the Klein paradox being closely related to this process. We describe a canonical quantization of the Dirac field with x-electric potential step in terms of adequate in- and out-creation and annihilation operators that allow one to have consistent particle interpretation of the physical system under consideration and develop a nonperturbative (in the external field) technics to calculate scattering, reflection, and electron-positron pair creation. We resume the physical impact of this development.

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