Frictionless flow of a Bose–Einstein condensed fluid (⁴He below 2.17 K, ³He Cooper-paired, cold-atom BECs). Landau critical velocity bounds dissipation.
Frictionless flow of a Bose–Einstein condensed fluid (⁴He below 2.17 K, ³He Cooper-paired, cold-atom BECs). Landau critical velocity bounds dissipation.