${}^4$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 ${}^4$He confined in nanoporous glasses. ${}^4$He in nanoporous media is an ideal ground to survey the quantum phase transition…