Abstract
Due to the statistical independence of spontaneous and stimulated bremsstrahlung processes, quantum 1/f noise is not affected by the presence of a radiation background. Only spontaneous emission of infraquanta yields qunatum 1/f noise. The rest gives an uncorrelated white noise contribution. Thus, unlike X‐ray edges, quantum 1/f noise has no thermal broadening, contrary to the expectations of most critics of the infrared divergence approach to 1/f noise. Here we repeat an earlier calculation in second quantization terms. We also show the pair‐correlation functions for both bosons and fermions in second quantization.
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