Surface-acoustic-wave single-electron interferometry

R Rodriquez, D K L Oi, M Kataoka, C H W Barnes, T Ohshima, A K Ekert

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


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 traveling periodic electric field. The experimental device is a modification of the surface-acoustic-wave-based quantum processor. Interference is achieved by creating a superposition of spatial wave functions 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.

Original languageEnglish
Article number085329
Pages (from-to)-
Number of pages4
JournalPhysical Review B
Issue number8
Publication statusPublished - Aug 2005


  • quantum computers
  • gaas
  • electron interferometry


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