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Coherence in Spontaneous Radiation Processes

R. H. Dicke · Physical Review · 1954

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Author / responsible party
R. H. Dicke
Publisher
Physical Review
Year
1954
Language
English

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By considering a radiating gas as a single quantum-mechanical system, energy levels corresponding to certain correlations between individual molecules are described. Spontaneous emission of radiation in a transition between two such levels leads to the emission of coherent radiation. The discussion is limited first to a gas of dimension small compared with a wavelength. Spontaneous radiation rates and natural line breadths are calculated. For a gas of large extent the effect of photon recoil momentum on coherence is calculated. The effect of a radiation pulse in exciting "super-radiant" states is discussed. The angular correlation between successive photons spontaneously emitted by a gas initially in thermal equilibrium is calculated.

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APA 7

Dicke, R. H. (1954). Coherence in Spontaneous Radiation Processes. https://doi.org/10.1103/physrev.93.99

MLA

Dicke, R. H. "Coherence in Spontaneous Radiation Processes." 1954. https://doi.org/10.1103/physrev.93.99.

Chicago

Dicke, R. H. 1954. "Coherence in Spontaneous Radiation Processes.". https://doi.org/10.1103/physrev.93.99.

Harvard

Dicke, R. H. 1954, Coherence in Spontaneous Radiation Processes, Physical Review, available at: https://doi.org/10.1103/physrev.93.99 [Accessed 10 Aug. 2026].

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Title
Coherence in Spontaneous Radiation Processes
Author / contributors
R. H. Dicke
Publisher
Physical Review
Publication year
1954
Language
English

Subjects

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Physics; Coherence (philosophical gambling strategy); Radiation; Photon; Recoil; Atomic physics; Spontaneous emission; Wavelength; Quantum; Coherence length; Radiant energy; Radiative transfer
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