What is superfluidity and how is it possible that a fermionic condensate can flow at low velocities without dissipating

What is superfluidity and how is it possible that a fermionic condensate can flow at low velocities without dissipating any energy—i.e. zero viscosity??

Posted on June 20, 2013 by in Question. Comments Off on What is superfluidity and how is it possible that a fermionic condensate can flow at low velocities without dissipating