Path-Dependent Supercooling of the ${}^3$He Superfluid A-B transition

Dmytro Lotnyk, Anna Eyal, Nikolay Zhelev +7

We examine the discontinuous first-order superfluid ${}^3$He A to B transition in the vicinity of the polycritical point (2.232 mK and 21.22 bar). We find path-dependent transitions:…