First tetratomic supermolecules realized at nanokelvin temperatures
A team of experimentalists at the Max Planck Institute of Quantum Optics (MPQ) and theorists at the Chinese Academy of Sciences (CAS) has succeeded for the first time in populating and stabilizing a new type of molecule, so-called field-linked tetratomic molecules. These “supermolecules” are so fragile that they can only exist at ultracold temperatures. Their
How measuring Reynolds similitude in superfluids could help demonstrate existence of quantum viscosity
Every fluid—from Earth’s atmosphere to blood pumping through the human body—has viscosity, a quantifiable characteristic describing how the fluid will deform when it encounters some other matter. If the viscosity is higher, the fluid flows calmly, a state known as laminar. If the viscosity decreases, the fluid undergoes the transition from laminar to turbulent flow.Quantum