13-19 June 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Superfluid $^4$He Helmoltz nanoresonator

18 Jun 2015, 16:15
NINT Taylor room (University of Alberta)

NINT Taylor room

University of Alberta

Oral (Non-Student) / orale (non-étudiant) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) R3-1 Light-Matter Interactions (DAMOPC-DCMMP) / Interactions entre la lumière et la matière (DPAMPC-DPMCM)


Fabien Souris (University of Alberta)


We have built and investigated the properties of a nanofluidic Helmoltz resonator operating with superfluid $^4$He. The density oscillations of the fluid are measured with an on-chip capacitor, allowing us to probe a small volume of helium contained in the resonator. Oscillators based on superfluid $^4$He are expected to reach high quality factors due to its high purity and dissipationless flow. We have identified and studied the several dissipation mechanisms responsible for the limitation of the Q-factor in our device. Different improvements are proposed to reach higher Q-factors.

Primary author

Fabien Souris (University of Alberta)


John Davis (University of Alberta) Dr Xavier Rojas (University of Alberta)

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