78 citations · 101 across the 7 of their papers we have counts for
7 papers
He in Nanoporous Media: 4D XY Quantum Criticality at Finite Temperatures
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
We review our study of critical phenomena in superfluid He confined in nanoporous glasses. He in nanoporous media is an ideal ground to survey the quantum phase transition…
4D-XY Superfluid Transition and Dissipation in He Confined in Nanoporous Media
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
He confined in nanoporous Gelsil glass is a unique, strongly correlated Bose system exhibiting quantum phase transition (QPT) by controlling pressure. Previous studies revealed…
Evidence for 4D XY Quantum Criticality in He Confined in Nanoporous Media at Finite Temperatures
Tomoyuki Tani, Yusuke Nago, Satoshi Murakawa +1
He confined in nanoporous media is a model Bose system that exhibits quantum phase transition (QPT) by varying pressure. We have precisely determined the critical exponent of t…
Multiple Diffusion-Freezing Mechanisms in Molecular Hydrogen Films
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Molecular hydrogen is a fascinating candidate for quantum fluid showing bosonic and fermionic superfluidity. We have studied diffusion dynamics of thin films of H, HD and D…
Elastic Anomaly of Thin Neon Film
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Adsorbed molecular films provide two-dimensional systems that show various emergent phenomena that are not observed in bulk counterparts. We have measured the elasticity of thin ne…
Elastic Anomaly of Helium Films at a Quantum Phase Transition
T. Makiuchi, M. Tagai, Y. Nago +2
Helium films show various quantum phases that undergo quantum phase transitions by changing coverage n. We found anomalous elastic phenomena in bosonic 4He and fermionic 3He films…
Turbulence in Boundary Flow of Superfluid He Triggered by Free Vortex Rings
R. Goto, S. Fujiyama, H. Yano +6
The transition to turbulence in the boundary flow of superfluid He is investigated using a vortex--free vibrating wire. At high wire vibration velocities, we found that stable…