| Summary: | We present an analytical study on the generation of broadband electromagnetic noise in solids as a consequence of variations in the dielectric constant under the impact of polarization induced by nonequilibrium thermodynamic fluctuations. The analysis leads to a specific formulation of the fluctuation dissipation theorem in the context of dielectric materials having finite electrodynamic boundary conditions, which drive energy into the system, under feedback, during its under interaction with a heat bath. The ensuing spectral symmetry breaking of the broadband noise yields bursts of narrowband signals, which can potentially result in phase transitions and dielectric breakdown. This study sheds a new light on high temperature precision calorimetry, while also improving our understanding of unexpected breakdowns in devices like CMOS components, capacitors and batteries.
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