Intrinsic decoherence in mesoscopic systems
Files
Published version
First author draft
Date
1997-04-28
Authors
Mohanty, P.
Jariwala, E.M.Q.
Webb, R.A.
Version
OA Version
Citation
Mohanty, P., Jariwala, E.M.Q., and Webb, R.A. (1997). Intrinsic Decoherence in Mesoscopic Systems. Physical Review Letters, 78(17),
3366-3369. doi: 10.1103/PhysRevLett.78.3366
Abstract
We present measurements of the phase coherence time
τ
φ
in six quasi-1D Au wires and clearly show that
τ
φ
is temperature independent at low temperatures. We suggest that zero-point fluctuations of the phase coherent electrons are responsible for the observed saturation of
τ
φ
. We introduce a new functional form for the temperature dependence and present the results of a calculation for the saturation value of
τ
φ. This explains the observed temperature dependence of our samples as well as many 1D and 2D systems reported to date.
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License
© 1997 The American Physical Society.