Intrinsic Decoherence in Mesoscopic Systems
نویسندگان
چکیده
We present measurements of the phase coherence time tf in six quasi-1D Au wires and clearly show that tf is temperature independent at low temperatures. We suggest that zero-point fluctuations of the phase coherent electrons are responsible for the observed saturation of tf. We introduce a new functional form for the temperature dependence and present the results of a calculation for the saturation value of tf. This explains the observed temperature dependence of our samples as well as many 1D and 2D systems reported to date. [S0031-9007(97)03022-6]
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