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analysis, shows that an infinite number of soft photons are created. But only a finite number are detectable, the remainder, due to their low energy, falling below any finite energy detection threshold, which must necessarily exist. However even though most of the photons are not detectable they
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The divergence is usually in terms of particle number and not empirically troubling, in that all measurable quantities remain finite. (Unlike in the case of the
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states with a finite number of photons vanishes. Finite transition amplitudes are obtained only by summing over states with an infinite number of soft photons.
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in the coaccelerated frame in which the charge experiences a thermal bath due to the
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Higuchi, A.; Matsas, G. E. A.; Sudarsky, D. (1992-10-15).
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Higuchi, A.; Matsas, G. E. A.; Sudarsky, D. (1992-05-15).
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The zero-energy photons become important in analyzing the
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The infrared divergence only appears in theories with
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292:"Bremssstrahlung and zero-energy Rindler photons"
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