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VOLUME 43 (1986) | ISSUE 9 | PAGE 431
Low-temperature spatial fluctuations of the current in disordered conductors
At zero temperature in a uniform external field, the spatial fluctuations of the current in a conductor are proportional to the size of the sample. At a nonzero temperature, this size gives way to the coherence length of a normal metal. These fluctuations are accompanied by fluctuations of the chemical potential, which are also proportional to these lengths.