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Dephasing of Electrons on Helium by Collisions with Gas Atoms

D. Herman·H. Mathur·A. J. Dahm
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Abstract

The damping of quantum effects in the transport properties of electrons deposited on a surface of liquid helium is studied. It is found that due to vertical motion of the helium vapour atoms the interference of paths of duration $t$ is damped by a factor $\exp - (t/τ_v)^3$. An expression is derived for the weak-localization lineshape in the case that damping occurs by a combination of processes with this type of cubic exponential damping and processes with a simple exponential damping factor.

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D. Herman, H. Mathur, A. J. Dahm. 2000-07-10. Dephasing of Electrons on Helium by Collisions with Gas Atoms. https://doi.org/10.1103/physrevb.63.115418

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