Title:
|
Quantum liquid droplets in a mixture of Bose-Einstein condensates
|
Author:
|
Cabrera, C. R.; Tanzi, L.; Sanz, J.; Naylor, B.; Thomas, P.; Cheiney, P.; Tarruell, L.
|
Other authors:
|
Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques |
Abstract:
|
Bose-Einstein condensates |
Abstract:
|
quantum mixtures |
Abstract:
|
quantum liquids |
Abstract:
|
quantum fluctuations |
Abstract:
|
Quantum droplets are small clusters of atoms self-bound by the balance of attractive and repulsive
forces. Here we report on the observation of a novel type of droplets, solely stabilized by contact
interactions in a mixture of two Bose-Einstein condensates. We demonstrate that they are several
orders of magnitude more dilute than liquid helium by directly measuring their size and density
via in situ imaging. Moreover, by comparison to a single-component condensate, we show that
quantum many-body effects stabilize them against collapse. We observe that droplets require a
minimum atom number to be stable. Below, quantum pressure drives a liquid-to-gas transition that
we map out as a function of interaction strength. These ultra-dilute isotropic liquids remain weakly
interacting and constitute an ideal platform to benchmark quantum many-body theories. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Física -Quantum Optics -Quantum gases -Òptica quàntica |
Rights:
|
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
|
Article - Draft Article |
Share:
|
|