Low Temperature Physics
Low-temperature physics at the University of Florida is among the largest and most diverse low-temperature physics programs in North America. The field explores matter at cryogenic temperatures where thermal energy is minimized and quantum mechanical effects dominate physical behavior. In this regime, interacting systems can give rise to emergent phases such as superconductivity, superfluidity, and quantum phase transitions in strongly correlated and engineered materials. Research at the University of Florida spans experimental cryogenics and condensed matter physics, with connections to precision measurements and experimental searches for new physics, including dark matter detection.
Lee Group
The Lee Group conducts experimental low-temperature physics research at the National High Magnetic Field Laboratory, emphasizing advanced cryogenic instrumentation and high-field measurement platforms for studies at ultralow temperatures. The group develops and utilizes precision transport and spectroscopic techniques to probe strongly correlated quantum systems under extreme conditions, enabling investigations of emergent phenomena near quantum critical points.
Gazizulin Group
The Gazizulin Group conducts experimental low-temperature physics research focused on ultralow-temperature cryogenics and quantum systems in high magnetic fields. The group develops nuclear demagnetization refrigeration and sub-millikelvin platforms, along with compact thermometry and instrumentation for extreme environments at the MagLab. Research includes studies of low-dimensional and strongly correlated systems, such as Coulomb drag and non-Fermi-liquid behavior in quasi-one-dimensional conductors, as well as computational work on spin-chain materials with strong magnetocaloric effects near quantum critical points.
Lee Lab
The Lee Group focuses on experimental low-temperature condensed matter physics, particularly the study of quantum fluids such as superfluid helium using advanced cryogenic techniques. Their research investigates quantum turbulence, collective excitations, and phase transitions in superfluid systems, aiming to understand how macroscopic quantum behavior emerges from microscopic interactions. The group conducts precision measurements at ultra-low temperatures to probe fundamental properties of strongly correlated systems, including vortex dynamics and dissipation mechanisms in superfluids. Their work provides insight into quantum hydrodynamics and contributes to broader understanding of quantum many-body physics under extreme conditions.
Huan Group
The Huan Group conducts experimental condensed matter physics research on quantum materials and low-dimensional systems under extreme conditions. Current work includes studies of ferroquadrupolar ordering and nematic quantum criticality in thulium vanadate (TmVO₄), where magnetic-field-tuned phase transitions are probed using ultralow-temperature susceptibility measurements in high magnetic fields. Experiments performed at the MagLab High B/T Facility utilize nuclear refrigeration and ³He immersion techniques to access temperatures far below previously achievable limits, enabling detailed mapping of quantum phase boundaries and the role of nuclear-electronic coupling. Additional research explores one-dimensional quantum systems, including Luttinger liquid behavior in confined ³He systems studied via nuclear magnetic resonance, where spin-lattice relaxation measurements reveal signatures of strongly correlated 1D dynamics. The work highlights how extreme temperature and field environments reveal emergent quantum behavior in condensed matter systems.
Phase diagram of TmVO4 as a function of applied magnetic field.
Temperature dependence of the spin-lattice relaxation times.