Internal Seminar

Ultracold one-dimensional quantum liquids and droplets

By
Ivan Morera (ICCUB)
Date
Place
Zoom
ICCUB internal seminar
The recent experimental observation of quantum droplets in ultracold atomic systems has opened the possibility of studying quantum liquids with an unprecedented level of control and precision. Different interactions between atoms can be produced from short to long-range and they can be tuned using magnetic fields. Moreover, the geometry and dimensionality of the system can also be controlled which allows the creation of one-dimensional quantum liquids. I will show how by discretizing these theories we can study in great detail these quantum phases. For a bosonic mixture I will provide a microscopic theory for the formation of quantum droplets. Moreover, I will discuss what are the universal properties of theories which have quantum droplets or liquids as ground states at zero temperature. Finally, I will present recent results for the time evolution of the expansion of a quantum droplet.