Quantum Liquid tagged posts

Experiments with ultracold magnetic atoms reveal liquid-like quantum droplets that are 20 times larger than previously observed droplets.

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These quantum droplets may preserve their form in absence of external confinement because of quantum effects. “Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino.

In the laboratory, her team observed how macrodroplets formed in a quantum gas...

Left: In a single particle system, the behavior of the particle is well understood by solving the Schrödinger equation. Here the particle possesses wave nature characterized by the de Broglie wave length. Right: In a many particle system, on the other hand, the particles interact each other in a quantum mechanical way and behave as if they are “liquid”. This is called quantum liquid whose properties are very different from that of the single particle case. Credit: Image courtesy of Osaka University

Researchers, through precise measurement of current fluctuations in quantum liquids in an artificial atom created by nanotechnology, succeeded in elucidating theoretically-predicted behavior of quantum liquid in a non-equilibrium regime...