Isolating electrons on superfluid helium

Maika Takita, S. A. Lyon

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Electrons floating on the surface of superfluid helium have been suggested as promising mobile spin quantum bits (qubits). Transferring electrons extremely efficiently in a narrow channel structure with underlying gates has been demonstrated, showing no transfer error while clocking 109 pixels in a 3-phase charge coupled device (CCD). While on average, one electron per channel was clocked, it is desirable to reliably obtain a single electron per channel. We have designed an electron turnstile consisting of a narrow (0.8μm) channel and narrow underlying gates (0.5μm) operating across seventy-eight parallel channels. Initially, we find that more than one electron can be held above the small gates. Underlying gates in the turnstile region allow us to repeatedly split these electron packets. Results show a plateau in the electron signal as a function of the applied gate voltages, indicating quantization of the number of electrons per pixel, simultaneously across the seventy-eight parallel channels.

Original languageEnglish (US)
Article number052034
JournalJournal of Physics: Conference Series
StatePublished - 2014
Event27th International Conference on Low Temperature Physics, LT 2014 - Buenos Aires, Argentina
Duration: Aug 6 2014Aug 13 2014

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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