Decoherence and Quantum Fluctuations

Details Decoherence and Quantum Fluctuations Decoherence and Quantum Fluctuations

1997-10-10

arxiv.org/abs/cond-mat/9710094v1

Phys. Rev. B 55, R13452 (1997)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages & 1 figure

Scientific paper

10.1103/PhysRevB.55.R13452

We show that the zero-point fluctuations of the intrinsic electromagnetic
environment limit the phase coherence time in all mesoscopic systems at low
temperatures. We derive this quantum noise limited dephasing time and its
temperature dependence in the crossover to the thermal regime. Our results
agree well with most experiments in 1D systems.

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