The AB Transition of Superfluid 3He
W. P. Halperin, M. Nguyen, J. W. Scott and J. A. Sauls
- Address: Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208
- Published: October 23, 2021
- Journal: Journal of Low Temperature Physics (2021)
The discovery of superfluidity in 3He in 1971, published in 1972, influenced a wide range of investigations that extend well beyond fermionic superfluids, including electronic quantum materials, ultra-cold gases and degenerate neutron matter. Observation of thermodynamic transitions from the 3He Fermi liquid to two other liquid phases, A- and B-phases, along the melting curve of liquid and solid 3He, discovered by Osheroff, Richardson and Lee, was the very first indications of 3He superfluidity leading to their Nobel prize in 1996. This is a brief retrospective specifically focused on the AB transition.
- Comment: 8 pages, 5 figures