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Surface Acoustic Wave Single-Electron Interferometry
release_36atvkoqwvh4xd5gdxn3iwqa4u
by
Roberta Rodriquez,
Daniel K. L. Oi,
Crispin H. W. Barnes,
Masaya
Kataoka,
Toshio Ohshima,
Artur K. Ekert
Released
as a article
.
2004
Abstract
We propose an experiment to observe interference of a single electron as it
is transported along two parallel quasi-one-dimensional channels trapped in a
single minimum of a travelling periodic electric field. The experimental device
is a modification of the surface acoustic wave (SAW) based quantum processor.
Interference is achieved by creating a superposition of spatial wavefunctions
between the two channels and inducing a relative phase shift via either a
transverse electric field or a magnetic field. The interference can be used to
estimate the decoherence time of an electron in this type of solid-state
device.
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