2005/06/23 by James Day, Tobias Herman, John Beamish
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Atomic physics #Condensed matter physics #Decoupling (probability) #Helium #High-pressure geophysics and materials #Materials science #Phase (matter) #Phase diagram #Phase transition #Physics #Quantum, superfluid, helium dynamics #Redistribution (election) #Superconducting Materials and Applications #Supersolid #Thermodynamics #cond-mat.other
paper · pdf · doi:10.1103/physrevlett.95.035301
published as Phys. Rev. Lett., vol. 95, 035301 (2005) · 5 pages, 4 figures
arxiv created 2005/06/23 · openalex publication_date 2005/07/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The recent torsional oscillator results of Kim and Chan suggest a supersolid phase transition in solid 4He confined in Vycor. We have used a capacitive technique to directly monitor density changes for helium confined in Vycor at low temperature and have used a piezoelectrically driven diaphragm to study the pressure-induced flow of solid helium into the Vycor pores. Our measurements showed no indication of a mass redistribution in the Vycor that could mimic supersolid decoupling and put an upper limit of about 0.003 microm/s on any pressure-induced supersolid flow in the pores of Vycor.