Observation of counterflow superfluidity in a two-component Mott
insulator
Observation of counterflow superfluidity in a two-component Mott
insulator
The counterflow superfluidity (CSF) was predicted two decades ago. Counterintuitively, while both components in the CSF have fluidity, their correlated counterflow currents cancel out leading the overall system to an incompressible Mott insulator. However, realizing and identifying the CSF remain challenging due to the request on extreme experimental capabilities in …