Quantum Hydrodynamics Research

Helium-4 in the superfluid phase (He II) exhibits fascinating quantum hydrodynamics that has important scientific and engineering applications. Yet, the lack of quantitative flow measurement tools has impeded progress in this field. We aim to develop and implement transformative flow visualization techniques to unlock the full potential of He II.

Learn More
  • Research1

    Dr. Wei Guo, the principle investigator of the Cryogenics Lab.

  • Research3

    Students working on the helium drop levitation experiment.

  • Research2

    Mastracci and the particle tracking velocimetry facility he constructed.

  • Research4

    Femtosecond laser system and optical components for flow visualization.

  • Research4

    Gao tuning the laser fluorescence imaging facility.

  • Research4

    Students in their office cubicle.

Image 01

Flow visualization technique development

Image 02

He II thermal counterflow experiment

Image 03

He II towed-grid turbulence experiment

Image 04

Helium drop magnetic levitation experiment

About Us

Our cryogenics lab focuses on the study of mass/heat transfer and novel quantum hydrodynamics in cryogenic helium-4. We are also interested in various applications of cryogenic fluids in particle physics research and space science. By implementing advanced laser and magnet technologies, we have acquired unique capability to conduct cutting-edge research in the aforementioned areas. We look for passionate and dedicated students to join our lab.

Latest News

    Jul 5, 2022, our recent work "Universal anomalous diffusion of quantized vortices in ultra-quantum turbulence" has been published in Phys. Rev. Lett. and selected as an Editor's Suggestion. See FSU News]

    May 4, 2022, our collaborative work "Single electrons on solid neon as a solid-state qubit platform" has been published in Nature. See [ FSU News]

    Nov 4, 2021, our recent work "A magnetic levitation based low-gravity simulator with an unprecedented large functional volume" has been published in npj Microgravity. See [ FSU News]

    Sept 10, 2021, our recent work "True Mechanism of Spontaneous Order from Turbulence in Two-Dimensional Superfluid Manifolds" has been published in Phys. Rev. Lett. See [ FSU News]

    Apr 8, 2021, our recent work "Superdiffusion of quantized vortices uncovering scaling laws in quantum turbulence" has been published in Proc. Natl. Acad. Sci. See [ FSU News]

    Mar 30, 2020, Toshiaki's recent work "Torque and Angular Momentum Transfer in Merging Rotating Bose-Einstein Condensates" has been published in Phys. Rev. Lett. See news report [ Maglab News], [ FSU News], and [ ANL News]

    Apr 1, 2020, our collaborative work "Imaging Fluorescence of He2 Excimers Created by Neutron Capture in Liquid Helium II", which Dr. Shiran Bao made significant contribution, has been published in Phys. Rev. Lett. and selected as an Editor's Suggestion article. See [ FSU News]